Home / 99,938.84-137,975.64-62,264.12

Finding the Fourth Proportional to 99,938.84, 137,975.64 and 62,264.12

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Solution

The fourth proportional to 99,938.84, 137,975.64 and 62,264.12 is: 85,961.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,938.84 : 137,975.64 = 62,264.12 : x
  2. Step 2: Convert to fraction form
    99,938.84/137,975.64 = 62,264.12/x
  3. Step 3: Cross multiply
    99,938.84x = 137,975.64 × 62,264.12
  4. Step 4: Simplify right side
    99,938.84x = 8,590,931,806.04
  5. Step 5: Solve for x
    x = 8,590,931,806.04/99,938.84
  6. Step 6: Final answer
    x = 85,961.89

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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.