Home / 151,862.55-209,578.49-87,331.02

Finding the Fourth Proportional to 151,862.55, 209,578.49 and 87,331.02

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Solution

The fourth proportional to 151,862.55, 209,578.49 and 87,331.02 is: 120,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,862.55 : 209,578.49 = 87,331.02 : x
  2. Step 2: Convert to fraction form
    151,862.55/209,578.49 = 87,331.02/x
  3. Step 3: Cross multiply
    151,862.55x = 209,578.49 × 87,331.02
  4. Step 4: Simplify right side
    151,862.55x = 18,302,703,301.76
  5. Step 5: Solve for x
    x = 18,302,703,301.76/151,862.55
  6. Step 6: Final answer
    x = 120,521.51

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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.