Home / 156,937.30-235,060.35-139,426.90

Finding the Fourth Proportional to 156,937.30, 235,060.35 and 139,426.90

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Solution

The fourth proportional to 156,937.30, 235,060.35 and 139,426.90 is: 208,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.30 : 235,060.35 = 139,426.90 : x
  2. Step 2: Convert to fraction form
    156,937.30/235,060.35 = 139,426.90/x
  3. Step 3: Cross multiply
    156,937.30x = 235,060.35 × 139,426.90
  4. Step 4: Simplify right side
    156,937.30x = 32,773,735,913.42
  5. Step 5: Solve for x
    x = 32,773,735,913.42/156,937.30
  6. Step 6: Final answer
    x = 208,833.31

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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.