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Finding the Fourth Proportional to 156,151.65, 234,192.41 and 71,830.82

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Solution

The fourth proportional to 156,151.65, 234,192.41 and 71,830.82 is: 107,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,151.65 : 234,192.41 = 71,830.82 : x
  2. Step 2: Convert to fraction form
    156,151.65/234,192.41 = 71,830.82/x
  3. Step 3: Cross multiply
    156,151.65x = 234,192.41 × 71,830.82
  4. Step 4: Simplify right side
    156,151.65x = 16,822,233,074.40
  5. Step 5: Solve for x
    x = 16,822,233,074.40/156,151.65
  6. Step 6: Final answer
    x = 107,730.10

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1.5x scale

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.