Home / 158,411.34-218,468.07-97,972.38

Finding the Fourth Proportional to 158,411.34, 218,468.07 and 97,972.38

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Solution

The fourth proportional to 158,411.34, 218,468.07 and 97,972.38 is: 135,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,411.34 : 218,468.07 = 97,972.38 : x
  2. Step 2: Convert to fraction form
    158,411.34/218,468.07 = 97,972.38/x
  3. Step 3: Cross multiply
    158,411.34x = 218,468.07 × 97,972.38
  4. Step 4: Simplify right side
    158,411.34x = 21,403,836,771.91
  5. Step 5: Solve for x
    x = 21,403,836,771.91/158,411.34
  6. Step 6: Final answer
    x = 135,115.56

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1.5x scale

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.