Home / 123,955.42-171,000.05-89,889.18

Finding the Fourth Proportional to 123,955.42, 171,000.05 and 89,889.18

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Solution

The fourth proportional to 123,955.42, 171,000.05 and 89,889.18 is: 124,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,955.42 : 171,000.05 = 89,889.18 : x
  2. Step 2: Convert to fraction form
    123,955.42/171,000.05 = 89,889.18/x
  3. Step 3: Cross multiply
    123,955.42x = 171,000.05 × 89,889.18
  4. Step 4: Simplify right side
    123,955.42x = 15,371,053,419.46
  5. Step 5: Solve for x
    x = 15,371,053,419.46/123,955.42
  6. Step 6: Final answer
    x = 124,004.69

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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.