Home / 119,981.12-165,567.24-74,657.70

Finding the Fourth Proportional to 119,981.12, 165,567.24 and 74,657.70

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Solution

The fourth proportional to 119,981.12, 165,567.24 and 74,657.70 is: 103,023.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,981.12 : 165,567.24 = 74,657.70 : x
  2. Step 2: Convert to fraction form
    119,981.12/165,567.24 = 74,657.70/x
  3. Step 3: Cross multiply
    119,981.12x = 165,567.24 × 74,657.70
  4. Step 4: Simplify right side
    119,981.12x = 12,360,869,333.75
  5. Step 5: Solve for x
    x = 12,360,869,333.75/119,981.12
  6. Step 6: Final answer
    x = 103,023.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.