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Finding the Fourth Proportional to 106,862.76, 147,446.73 and 63,830.70

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Solution

The fourth proportional to 106,862.76, 147,446.73 and 63,830.70 is: 88,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,862.76 : 147,446.73 = 63,830.70 : x
  2. Step 2: Convert to fraction form
    106,862.76/147,446.73 = 63,830.70/x
  3. Step 3: Cross multiply
    106,862.76x = 147,446.73 × 63,830.70
  4. Step 4: Simplify right side
    106,862.76x = 9,411,627,988.61
  5. Step 5: Solve for x
    x = 9,411,627,988.61/106,862.76
  6. Step 6: Final answer
    x = 88,072.10

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1.5x scale

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.