Home / 131,410.32-181,346.42-74,821.72

Finding the Fourth Proportional to 131,410.32, 181,346.42 and 74,821.72

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Solution

The fourth proportional to 131,410.32, 181,346.42 and 74,821.72 is: 103,254.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,410.32 : 181,346.42 = 74,821.72 : x
  2. Step 2: Convert to fraction form
    131,410.32/181,346.42 = 74,821.72/x
  3. Step 3: Cross multiply
    131,410.32x = 181,346.42 × 74,821.72
  4. Step 4: Simplify right side
    131,410.32x = 13,568,651,060.24
  5. Step 5: Solve for x
    x = 13,568,651,060.24/131,410.32
  6. Step 6: Final answer
    x = 103,254.08

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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.