Home / 156,257.87-234,397.74-77,350.91

Finding the Fourth Proportional to 156,257.87, 234,397.74 and 77,350.91

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Solution

The fourth proportional to 156,257.87, 234,397.74 and 77,350.91 is: 116,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,257.87 : 234,397.74 = 77,350.91 : x
  2. Step 2: Convert to fraction form
    156,257.87/234,397.74 = 77,350.91/x
  3. Step 3: Cross multiply
    156,257.87x = 234,397.74 × 77,350.91
  4. Step 4: Simplify right side
    156,257.87x = 18,130,878,490.94
  5. Step 5: Solve for x
    x = 18,130,878,490.94/156,257.87
  6. Step 6: Final answer
    x = 116,031.78

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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.