Home / 113,609,985.20-170,414,977.80-86,736,129.20

Finding the Fourth Proportional to 113,609,985.20, 170,414,977.80 and 86,736,129.20

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Solution

The fourth proportional to 113,609,985.20, 170,414,977.80 and 86,736,129.20 is: 130,104,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,609,985.20 : 170,414,977.80 = 86,736,129.20 : x
  2. Step 2: Convert to fraction form
    113,609,985.20/170,414,977.80 = 86,736,129.20/x
  3. Step 3: Cross multiply
    113,609,985.20x = 170,414,977.80 × 86,736,129.20
  4. Step 4: Simplify right side
    113,609,985.20x = 14,781,135,532,075,934
  5. Step 5: Solve for x
    x = 14,781,135,532,075,934/113,609,985.20
  6. Step 6: Final answer
    x = 130,104,193.80

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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.