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Finding the Fourth Proportional to 162,356.78, 224,048.22 and 90,737.40

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Solution

The fourth proportional to 162,356.78, 224,048.22 and 90,737.40 is: 125,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,356.78 : 224,048.22 = 90,737.40 : x
  2. Step 2: Convert to fraction form
    162,356.78/224,048.22 = 90,737.40/x
  3. Step 3: Cross multiply
    162,356.78x = 224,048.22 × 90,737.40
  4. Step 4: Simplify right side
    162,356.78x = 20,329,552,957.43
  5. Step 5: Solve for x
    x = 20,329,552,957.43/162,356.78
  6. Step 6: Final answer
    x = 125,215.30

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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.