Home / 107,834,772.20-161,752,158.30-67,020,103.40

Finding the Fourth Proportional to 107,834,772.20, 161,752,158.30 and 67,020,103.40

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Solution

The fourth proportional to 107,834,772.20, 161,752,158.30 and 67,020,103.40 is: 100,530,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,834,772.20 : 161,752,158.30 = 67,020,103.40 : x
  2. Step 2: Convert to fraction form
    107,834,772.20/161,752,158.30 = 67,020,103.40/x
  3. Step 3: Cross multiply
    107,834,772.20x = 161,752,158.30 × 67,020,103.40
  4. Step 4: Simplify right side
    107,834,772.20x = 10,840,646,374,439,168
  5. Step 5: Solve for x
    x = 10,840,646,374,439,168/107,834,772.20
  6. Step 6: Final answer
    x = 100,530,155.10

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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.