Home / 257,685.02-386,521.19-99,913.52

Finding the Fourth Proportional to 257,685.02, 386,521.19 and 99,913.52

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Solution

The fourth proportional to 257,685.02, 386,521.19 and 99,913.52 is: 149,867.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,685.02 : 386,521.19 = 99,913.52 : x
  2. Step 2: Convert to fraction form
    257,685.02/386,521.19 = 99,913.52/x
  3. Step 3: Cross multiply
    257,685.02x = 386,521.19 × 99,913.52
  4. Step 4: Simplify right side
    257,685.02x = 38,618,690,215.32
  5. Step 5: Solve for x
    x = 38,618,690,215.32/257,685.02
  6. Step 6: Final answer
    x = 149,867.82

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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.