Home / 113,571,938.40-170,357,907.60-81,323,311.20

Finding the Fourth Proportional to 113,571,938.40, 170,357,907.60 and 81,323,311.20

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Solution

The fourth proportional to 113,571,938.40, 170,357,907.60 and 81,323,311.20 is: 121,984,966.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,571,938.40 : 170,357,907.60 = 81,323,311.20 : x
  2. Step 2: Convert to fraction form
    113,571,938.40/170,357,907.60 = 81,323,311.20/x
  3. Step 3: Cross multiply
    113,571,938.40x = 170,357,907.60 × 81,323,311.20
  4. Step 4: Simplify right side
    113,571,938.40x = 13,854,069,135,135,646
  5. Step 5: Solve for x
    x = 13,854,069,135,135,646/113,571,938.40
  6. Step 6: Final answer
    x = 121,984,966.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.