Home / 119,632.60-165,172.50-74,378.20

Finding the Fourth Proportional to 119,632.60, 165,172.50 and 74,378.20

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Solution

The fourth proportional to 119,632.60, 165,172.50 and 74,378.20 is: 102,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,632.60 : 165,172.50 = 74,378.20 : x
  2. Step 2: Convert to fraction form
    119,632.60/165,172.50 = 74,378.20/x
  3. Step 3: Cross multiply
    119,632.60x = 165,172.50 × 74,378.20
  4. Step 4: Simplify right side
    119,632.60x = 12,285,233,239.50
  5. Step 5: Solve for x
    x = 12,285,233,239.50/119,632.60
  6. Step 6: Final answer
    x = 102,691.35

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1.5x scale

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.