Home / 131,607.39-181,618.20-71,178.04

Finding the Fourth Proportional to 131,607.39, 181,618.20 and 71,178.04

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Solution

The fourth proportional to 131,607.39, 181,618.20 and 71,178.04 is: 98,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,607.39 : 181,618.20 = 71,178.04 : x
  2. Step 2: Convert to fraction form
    131,607.39/181,618.20 = 71,178.04/x
  3. Step 3: Cross multiply
    131,607.39x = 181,618.20 × 71,178.04
  4. Step 4: Simplify right side
    131,607.39x = 12,927,227,504.33
  5. Step 5: Solve for x
    x = 12,927,227,504.33/131,607.39
  6. Step 6: Final answer
    x = 98,225.70

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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.