Home / 157,066.30-235,513.05-68,304.70

Finding the Fourth Proportional to 157,066.30, 235,513.05 and 68,304.70

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Solution

The fourth proportional to 157,066.30, 235,513.05 and 68,304.70 is: 102,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,066.30 : 235,513.05 = 68,304.70 : x
  2. Step 2: Convert to fraction form
    157,066.30/235,513.05 = 68,304.70/x
  3. Step 3: Cross multiply
    157,066.30x = 235,513.05 × 68,304.70
  4. Step 4: Simplify right side
    157,066.30x = 16,086,648,226.34
  5. Step 5: Solve for x
    x = 16,086,648,226.34/157,066.30
  6. Step 6: Final answer
    x = 102,419.48

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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.