Home / 157,862.12-217,859.78-89,885.03

Finding the Fourth Proportional to 157,862.12, 217,859.78 and 89,885.03

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Solution

The fourth proportional to 157,862.12, 217,859.78 and 89,885.03 is: 124,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,862.12 : 217,859.78 = 89,885.03 : x
  2. Step 2: Convert to fraction form
    157,862.12/217,859.78 = 89,885.03/x
  3. Step 3: Cross multiply
    157,862.12x = 217,859.78 × 89,885.03
  4. Step 4: Simplify right side
    157,862.12x = 19,582,333,630.46
  5. Step 5: Solve for x
    x = 19,582,333,630.46/157,862.12
  6. Step 6: Final answer
    x = 124,047.07

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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.