Home / 99,294.28-136,968.75-62,981.89

Finding the Fourth Proportional to 99,294.28, 136,968.75 and 62,981.89

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Solution

The fourth proportional to 99,294.28, 136,968.75 and 62,981.89 is: 86,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,294.28 : 136,968.75 = 62,981.89 : x
  2. Step 2: Convert to fraction form
    99,294.28/136,968.75 = 62,981.89/x
  3. Step 3: Cross multiply
    99,294.28x = 136,968.75 × 62,981.89
  4. Step 4: Simplify right side
    99,294.28x = 8,626,550,745.94
  5. Step 5: Solve for x
    x = 8,626,550,745.94/99,294.28
  6. Step 6: Final answer
    x = 86,878.63

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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.