Home / 99,787.40-149,681.10-62,389.70

Finding the Fourth Proportional to 99,787.40, 149,681.10 and 62,389.70

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Solution

The fourth proportional to 99,787.40, 149,681.10 and 62,389.70 is: 93,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,787.40 : 149,681.10 = 62,389.70 : x
  2. Step 2: Convert to fraction form
    99,787.40/149,681.10 = 62,389.70/x
  3. Step 3: Cross multiply
    99,787.40x = 149,681.10 × 62,389.70
  4. Step 4: Simplify right side
    99,787.40x = 9,338,558,924.67
  5. Step 5: Solve for x
    x = 9,338,558,924.67/99,787.40
  6. Step 6: Final answer
    x = 93,584.55

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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.