Home / 131,492.16-197,179.92-81,570.24

Finding the Fourth Proportional to 131,492.16, 197,179.92 and 81,570.24

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Solution

The fourth proportional to 131,492.16, 197,179.92 and 81,570.24 is: 122,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,492.16 : 197,179.92 = 81,570.24 : x
  2. Step 2: Convert to fraction form
    131,492.16/197,179.92 = 81,570.24/x
  3. Step 3: Cross multiply
    131,492.16x = 197,179.92 × 81,570.24
  4. Step 4: Simplify right side
    131,492.16x = 16,084,013,397.58
  5. Step 5: Solve for x
    x = 16,084,013,397.58/131,492.16
  6. Step 6: Final answer
    x = 122,319.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.