Home / 157,278.56-217,035.60-89,277.28

Finding the Fourth Proportional to 157,278.56, 217,035.60 and 89,277.28

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Solution

The fourth proportional to 157,278.56, 217,035.60 and 89,277.28 is: 123,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,278.56 : 217,035.60 = 89,277.28 : x
  2. Step 2: Convert to fraction form
    157,278.56/217,035.60 = 89,277.28/x
  3. Step 3: Cross multiply
    157,278.56x = 217,035.60 × 89,277.28
  4. Step 4: Simplify right side
    157,278.56x = 19,376,348,031.17
  5. Step 5: Solve for x
    x = 19,376,348,031.17/157,278.56
  6. Step 6: Final answer
    x = 123,197.64

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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.