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Finding the Fourth Proportional to 178,127, 266,957.22 and 99,278.36

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Solution

The fourth proportional to 178,127, 266,957.22 and 99,278.36 is: 148,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,127 : 266,957.22 = 99,278.36 : x
  2. Step 2: Convert to fraction form
    178,127/266,957.22 = 99,278.36/x
  3. Step 3: Cross multiply
    178,127x = 266,957.22 × 99,278.36
  4. Step 4: Simplify right side
    178,127x = 26,503,074,991.76
  5. Step 5: Solve for x
    x = 26,503,074,991.76/178,127
  6. Step 6: Final answer
    x = 148,787.52

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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.