Home / 138,892,125.60-191,560,548.24-89,338,191.84

Finding the Fourth Proportional to 138,892,125.60, 191,560,548.24 and 89,338,191.84

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Solution

The fourth proportional to 138,892,125.60, 191,560,548.24 and 89,338,191.84 is: 123,215,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,892,125.60 : 191,560,548.24 = 89,338,191.84 : x
  2. Step 2: Convert to fraction form
    138,892,125.60/191,560,548.24 = 89,338,191.84/x
  3. Step 3: Cross multiply
    138,892,125.60x = 191,560,548.24 × 89,338,191.84
  4. Step 4: Simplify right side
    138,892,125.60x = 17,113,673,007,640,696
  5. Step 5: Solve for x
    x = 17,113,673,007,640,696/138,892,125.60
  6. Step 6: Final answer
    x = 123,215,574.20

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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.