Home / 131,522.32-181,445.04-80,515.84

Finding the Fourth Proportional to 131,522.32, 181,445.04 and 80,515.84

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Solution

The fourth proportional to 131,522.32, 181,445.04 and 80,515.84 is: 111,077.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,522.32 : 181,445.04 = 80,515.84 : x
  2. Step 2: Convert to fraction form
    131,522.32/181,445.04 = 80,515.84/x
  3. Step 3: Cross multiply
    131,522.32x = 181,445.04 × 80,515.84
  4. Step 4: Simplify right side
    131,522.32x = 14,609,199,809.43
  5. Step 5: Solve for x
    x = 14,609,199,809.43/131,522.32
  6. Step 6: Final answer
    x = 111,077.72

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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.