Home / 131,108.16-180,928.96-71,492.16

Finding the Fourth Proportional to 131,108.16, 180,928.96 and 71,492.16

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Solution

The fourth proportional to 131,108.16, 180,928.96 and 71,492.16 is: 98,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,108.16 : 180,928.96 = 71,492.16 : x
  2. Step 2: Convert to fraction form
    131,108.16/180,928.96 = 71,492.16/x
  3. Step 3: Cross multiply
    131,108.16x = 180,928.96 × 71,492.16
  4. Step 4: Simplify right side
    131,108.16x = 12,935,002,156.95
  5. Step 5: Solve for x
    x = 12,935,002,156.95/131,108.16
  6. Step 6: Final answer
    x = 98,659.02

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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.