Home / 123,972.40-185,958.60-76,625.20

Finding the Fourth Proportional to 123,972.40, 185,958.60 and 76,625.20

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Solution

The fourth proportional to 123,972.40, 185,958.60 and 76,625.20 is: 114,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,972.40 : 185,958.60 = 76,625.20 : x
  2. Step 2: Convert to fraction form
    123,972.40/185,958.60 = 76,625.20/x
  3. Step 3: Cross multiply
    123,972.40x = 185,958.60 × 76,625.20
  4. Step 4: Simplify right side
    123,972.40x = 14,249,114,916.72
  5. Step 5: Solve for x
    x = 14,249,114,916.72/123,972.40
  6. Step 6: Final answer
    x = 114,937.80

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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.