Home / 156,255.02-215,490.19-102,519.62

Finding the Fourth Proportional to 156,255.02, 215,490.19 and 102,519.62

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Solution

The fourth proportional to 156,255.02, 215,490.19 and 102,519.62 is: 141,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,255.02 : 215,490.19 = 102,519.62 : x
  2. Step 2: Convert to fraction form
    156,255.02/215,490.19 = 102,519.62/x
  3. Step 3: Cross multiply
    156,255.02x = 215,490.19 × 102,519.62
  4. Step 4: Simplify right side
    156,255.02x = 22,091,972,392.53
  5. Step 5: Solve for x
    x = 22,091,972,392.53/156,255.02
  6. Step 6: Final answer
    x = 141,384.08

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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.