Home / 123,781,705.13-170,822,848.52-68,029,101.72

Finding the Fourth Proportional to 123,781,705.13, 170,822,848.52 and 68,029,101.72

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Solution

The fourth proportional to 123,781,705.13, 170,822,848.52 and 68,029,101.72 is: 93,882,411.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,781,705.13 : 170,822,848.52 = 68,029,101.72 : x
  2. Step 2: Convert to fraction form
    123,781,705.13/170,822,848.52 = 68,029,101.72/x
  3. Step 3: Cross multiply
    123,781,705.13x = 170,822,848.52 × 68,029,101.72
  4. Step 4: Simplify right side
    123,781,705.13x = 11,620,924,938,237,304
  5. Step 5: Solve for x
    x = 11,620,924,938,237,304/123,781,705.13
  6. Step 6: Final answer
    x = 93,882,411.18

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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.