Home / 131,539.88-181,482.18-80,499.35

Finding the Fourth Proportional to 131,539.88, 181,482.18 and 80,499.35

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Solution

The fourth proportional to 131,539.88, 181,482.18 and 80,499.35 is: 111,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,539.88 : 181,482.18 = 80,499.35 : x
  2. Step 2: Convert to fraction form
    131,539.88/181,482.18 = 80,499.35/x
  3. Step 3: Cross multiply
    131,539.88x = 181,482.18 × 80,499.35
  4. Step 4: Simplify right side
    131,539.88x = 14,609,197,526.58
  5. Step 5: Solve for x
    x = 14,609,197,526.58/131,539.88
  6. Step 6: Final answer
    x = 111,062.88

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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.