Home / 150,064.34-206,990.54-89,587.70

Finding the Fourth Proportional to 150,064.34, 206,990.54 and 89,587.70

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Solution

The fourth proportional to 150,064.34, 206,990.54 and 89,587.70 is: 123,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,064.34 : 206,990.54 = 89,587.70 : x
  2. Step 2: Convert to fraction form
    150,064.34/206,990.54 = 89,587.70/x
  3. Step 3: Cross multiply
    150,064.34x = 206,990.54 × 89,587.70
  4. Step 4: Simplify right side
    150,064.34x = 18,543,806,400.36
  5. Step 5: Solve for x
    x = 18,543,806,400.36/150,064.34
  6. Step 6: Final answer
    x = 123,572.37

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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.