Home / 131,652.95-181,680.04-71,223.40

Finding the Fourth Proportional to 131,652.95, 181,680.04 and 71,223.40

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Solution

The fourth proportional to 131,652.95, 181,680.04 and 71,223.40 is: 98,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,652.95 : 181,680.04 = 71,223.40 : x
  2. Step 2: Convert to fraction form
    131,652.95/181,680.04 = 71,223.40/x
  3. Step 3: Cross multiply
    131,652.95x = 181,680.04 × 71,223.40
  4. Step 4: Simplify right side
    131,652.95x = 12,939,870,276.75
  5. Step 5: Solve for x
    x = 12,939,870,276.75/131,652.95
  6. Step 6: Final answer
    x = 98,287.74

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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.