Home / 131,073.17-180,900.40-80,115.26

Finding the Fourth Proportional to 131,073.17, 180,900.40 and 80,115.26

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Solution

The fourth proportional to 131,073.17, 180,900.40 and 80,115.26 is: 110,570.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,073.17 : 180,900.40 = 80,115.26 : x
  2. Step 2: Convert to fraction form
    131,073.17/180,900.40 = 80,115.26/x
  3. Step 3: Cross multiply
    131,073.17x = 180,900.40 × 80,115.26
  4. Step 4: Simplify right side
    131,073.17x = 14,492,882,832.07
  5. Step 5: Solve for x
    x = 14,492,882,832.07/131,073.17
  6. Step 6: Final answer
    x = 110,570.93

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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.