Home / 156,931.40-235,397.10-137,248.40

Finding the Fourth Proportional to 156,931.40, 235,397.10 and 137,248.40

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Solution

The fourth proportional to 156,931.40, 235,397.10 and 137,248.40 is: 205,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931.40 : 235,397.10 = 137,248.40 : x
  2. Step 2: Convert to fraction form
    156,931.40/235,397.10 = 137,248.40/x
  3. Step 3: Cross multiply
    156,931.40x = 235,397.10 × 137,248.40
  4. Step 4: Simplify right side
    156,931.40x = 32,307,875,339.64
  5. Step 5: Solve for x
    x = 32,307,875,339.64/156,931.40
  6. Step 6: Final answer
    x = 205,872.60

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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.