Home / 131,505.35-181,473.74-74,144.18

Finding the Fourth Proportional to 131,505.35, 181,473.74 and 74,144.18

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Solution

The fourth proportional to 131,505.35, 181,473.74 and 74,144.18 is: 102,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,505.35 : 181,473.74 = 74,144.18 : x
  2. Step 2: Convert to fraction form
    131,505.35/181,473.74 = 74,144.18/x
  3. Step 3: Cross multiply
    131,505.35x = 181,473.74 × 74,144.18
  4. Step 4: Simplify right side
    131,505.35x = 13,455,220,736.46
  5. Step 5: Solve for x
    x = 13,455,220,736.46/131,505.35
  6. Step 6: Final answer
    x = 102,316.91

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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.