Home / 102,791,420.70-153,884,197.53-90,036,836.70

Finding the Fourth Proportional to 102,791,420.70, 153,884,197.53 and 90,036,836.70

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Solution

The fourth proportional to 102,791,420.70, 153,884,197.53 and 90,036,836.70 is: 134,789,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,791,420.70 : 153,884,197.53 = 90,036,836.70 : x
  2. Step 2: Convert to fraction form
    102,791,420.70/153,884,197.53 = 90,036,836.70/x
  3. Step 3: Cross multiply
    102,791,420.70x = 153,884,197.53 × 90,036,836.70
  4. Step 4: Simplify right side
    102,791,420.70x = 13,855,246,363,719,154
  5. Step 5: Solve for x
    x = 13,855,246,363,719,154/102,791,420.70
  6. Step 6: Final answer
    x = 134,789,910.18

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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.