Home / 131,503.48-181,465.69-74,144.85

Finding the Fourth Proportional to 131,503.48, 181,465.69 and 74,144.85

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Solution

The fourth proportional to 131,503.48, 181,465.69 and 74,144.85 is: 102,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,503.48 : 181,465.69 = 74,144.85 : x
  2. Step 2: Convert to fraction form
    131,503.48/181,465.69 = 74,144.85/x
  3. Step 3: Cross multiply
    131,503.48x = 181,465.69 × 74,144.85
  4. Step 4: Simplify right side
    131,503.48x = 13,454,746,365.20
  5. Step 5: Solve for x
    x = 13,454,746,365.20/131,503.48
  6. Step 6: Final answer
    x = 102,314.76

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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.