Home / 113,571,936.40-170,357,904.60-81,323,309.20

Finding the Fourth Proportional to 113,571,936.40, 170,357,904.60 and 81,323,309.20

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Solution

The fourth proportional to 113,571,936.40, 170,357,904.60 and 81,323,309.20 is: 121,984,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,571,936.40 : 170,357,904.60 = 81,323,309.20 : x
  2. Step 2: Convert to fraction form
    113,571,936.40/170,357,904.60 = 81,323,309.20/x
  3. Step 3: Cross multiply
    113,571,936.40x = 170,357,904.60 × 81,323,309.20
  4. Step 4: Simplify right side
    113,571,936.40x = 13,854,068,550,449,902
  5. Step 5: Solve for x
    x = 13,854,068,550,449,902/113,571,936.40
  6. Step 6: Final answer
    x = 121,984,963.80

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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.