Home / 141,686.61-195,506.85-80,423.28

Finding the Fourth Proportional to 141,686.61, 195,506.85 and 80,423.28

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Solution

The fourth proportional to 141,686.61, 195,506.85 and 80,423.28 is: 110,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,686.61 : 195,506.85 = 80,423.28 : x
  2. Step 2: Convert to fraction form
    141,686.61/195,506.85 = 80,423.28/x
  3. Step 3: Cross multiply
    141,686.61x = 195,506.85 × 80,423.28
  4. Step 4: Simplify right side
    141,686.61x = 15,723,302,139.47
  5. Step 5: Solve for x
    x = 15,723,302,139.47/141,686.61
  6. Step 6: Final answer
    x = 110,972.39

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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.