Home / 103,876,248.40-155,609,086.20-91,111,166.80

Finding the Fourth Proportional to 103,876,248.40, 155,609,086.20 and 91,111,166.80

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Solution

The fourth proportional to 103,876,248.40, 155,609,086.20 and 91,111,166.80 is: 136,486,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,248.40 : 155,609,086.20 = 91,111,166.80 : x
  2. Step 2: Convert to fraction form
    103,876,248.40/155,609,086.20 = 91,111,166.80/x
  3. Step 3: Cross multiply
    103,876,248.40x = 155,609,086.20 × 91,111,166.80
  4. Step 4: Simplify right side
    103,876,248.40x = 14,177,725,408,363,776
  5. Step 5: Solve for x
    x = 14,177,725,408,363,776/103,876,248.40
  6. Step 6: Final answer
    x = 136,486,690.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.