Home / 124,900.32-187,219.20-77,515.28

Finding the Fourth Proportional to 124,900.32, 187,219.20 and 77,515.28

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Solution

The fourth proportional to 124,900.32, 187,219.20 and 77,515.28 is: 116,191.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,900.32 : 187,219.20 = 77,515.28 : x
  2. Step 2: Convert to fraction form
    124,900.32/187,219.20 = 77,515.28/x
  3. Step 3: Cross multiply
    124,900.32x = 187,219.20 × 77,515.28
  4. Step 4: Simplify right side
    124,900.32x = 14,512,348,709.38
  5. Step 5: Solve for x
    x = 14,512,348,709.38/124,900.32
  6. Step 6: Final answer
    x = 116,191.45

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1.5x scale

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.