Home / 131,008.46-180,663.24-83,178.77

Finding the Fourth Proportional to 131,008.46, 180,663.24 and 83,178.77

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Solution

The fourth proportional to 131,008.46, 180,663.24 and 83,178.77 is: 114,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,008.46 : 180,663.24 = 83,178.77 : x
  2. Step 2: Convert to fraction form
    131,008.46/180,663.24 = 83,178.77/x
  3. Step 3: Cross multiply
    131,008.46x = 180,663.24 × 83,178.77
  4. Step 4: Simplify right side
    131,008.46x = 15,027,345,219.86
  5. Step 5: Solve for x
    x = 15,027,345,219.86/131,008.46
  6. Step 6: Final answer
    x = 114,705.15

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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.