Home / 209,036.64-288,472.68-113,545.20

Finding the Fourth Proportional to 209,036.64, 288,472.68 and 113,545.20

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Solution

The fourth proportional to 209,036.64, 288,472.68 and 113,545.20 is: 156,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,036.64 : 288,472.68 = 113,545.20 : x
  2. Step 2: Convert to fraction form
    209,036.64/288,472.68 = 113,545.20/x
  3. Step 3: Cross multiply
    209,036.64x = 288,472.68 × 113,545.20
  4. Step 4: Simplify right side
    209,036.64x = 32,754,688,145.14
  5. Step 5: Solve for x
    x = 32,754,688,145.14/209,036.64
  6. Step 6: Final answer
    x = 156,693.53

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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.