Home / 131,630.12-181,602.30-75,008.66

Finding the Fourth Proportional to 131,630.12, 181,602.30 and 75,008.66

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Solution

The fourth proportional to 131,630.12, 181,602.30 and 75,008.66 is: 103,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,630.12 : 181,602.30 = 75,008.66 : x
  2. Step 2: Convert to fraction form
    131,630.12/181,602.30 = 75,008.66/x
  3. Step 3: Cross multiply
    131,630.12x = 181,602.30 × 75,008.66
  4. Step 4: Simplify right side
    131,630.12x = 13,621,745,175.92
  5. Step 5: Solve for x
    x = 13,621,745,175.92/131,630.12
  6. Step 6: Final answer
    x = 103,485.02

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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.