Home / 150,587.30-207,817-90,146.24

Finding the Fourth Proportional to 150,587.30, 207,817 and 90,146.24

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Solution

The fourth proportional to 150,587.30, 207,817 and 90,146.24 is: 124,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,587.30 : 207,817 = 90,146.24 : x
  2. Step 2: Convert to fraction form
    150,587.30/207,817 = 90,146.24/x
  3. Step 3: Cross multiply
    150,587.30x = 207,817 × 90,146.24
  4. Step 4: Simplify right side
    150,587.30x = 18,733,921,158.08
  5. Step 5: Solve for x
    x = 18,733,921,158.08/150,587.30
  6. Step 6: Final answer
    x = 124,405.72

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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.