Home / 109,565.52-151,204.96-61,818.68

Finding the Fourth Proportional to 109,565.52, 151,204.96 and 61,818.68

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Solution

The fourth proportional to 109,565.52, 151,204.96 and 61,818.68 is: 85,312.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,565.52 : 151,204.96 = 61,818.68 : x
  2. Step 2: Convert to fraction form
    109,565.52/151,204.96 = 61,818.68/x
  3. Step 3: Cross multiply
    109,565.52x = 151,204.96 × 61,818.68
  4. Step 4: Simplify right side
    109,565.52x = 9,347,291,036.65
  5. Step 5: Solve for x
    x = 9,347,291,036.65/109,565.52
  6. Step 6: Final answer
    x = 85,312.34

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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.