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Finding the Fourth Proportional to 156,737.86, 216,300.04 and 85,118.88

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Solution

The fourth proportional to 156,737.86, 216,300.04 and 85,118.88 is: 117,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,737.86 : 216,300.04 = 85,118.88 : x
  2. Step 2: Convert to fraction form
    156,737.86/216,300.04 = 85,118.88/x
  3. Step 3: Cross multiply
    156,737.86x = 216,300.04 × 85,118.88
  4. Step 4: Simplify right side
    156,737.86x = 18,411,217,148.76
  5. Step 5: Solve for x
    x = 18,411,217,148.76/156,737.86
  6. Step 6: Final answer
    x = 117,465.03

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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.