Home / 124,700.40-187,050.60-72,082.80

Finding the Fourth Proportional to 124,700.40, 187,050.60 and 72,082.80

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Solution

The fourth proportional to 124,700.40, 187,050.60 and 72,082.80 is: 108,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,700.40 : 187,050.60 = 72,082.80 : x
  2. Step 2: Convert to fraction form
    124,700.40/187,050.60 = 72,082.80/x
  3. Step 3: Cross multiply
    124,700.40x = 187,050.60 × 72,082.80
  4. Step 4: Simplify right side
    124,700.40x = 13,483,130,989.68
  5. Step 5: Solve for x
    x = 13,483,130,989.68/124,700.40
  6. Step 6: Final answer
    x = 108,124.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.