Home / 152,787.60-210,872.16-89,125.34

Finding the Fourth Proportional to 152,787.60, 210,872.16 and 89,125.34

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Solution

The fourth proportional to 152,787.60, 210,872.16 and 89,125.34 is: 123,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,787.60 : 210,872.16 = 89,125.34 : x
  2. Step 2: Convert to fraction form
    152,787.60/210,872.16 = 89,125.34/x
  3. Step 3: Cross multiply
    152,787.60x = 210,872.16 × 89,125.34
  4. Step 4: Simplify right side
    152,787.60x = 18,794,051,902.17
  5. Step 5: Solve for x
    x = 18,794,051,902.17/152,787.60
  6. Step 6: Final answer
    x = 123,007.70

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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.