Home / 131,098.32-180,864.36-80,709.84

Finding the Fourth Proportional to 131,098.32, 180,864.36 and 80,709.84

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Solution

The fourth proportional to 131,098.32, 180,864.36 and 80,709.84 is: 111,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,098.32 : 180,864.36 = 80,709.84 : x
  2. Step 2: Convert to fraction form
    131,098.32/180,864.36 = 80,709.84/x
  3. Step 3: Cross multiply
    131,098.32x = 180,864.36 × 80,709.84
  4. Step 4: Simplify right side
    131,098.32x = 14,597,533,557.30
  5. Step 5: Solve for x
    x = 14,597,533,557.30/131,098.32
  6. Step 6: Final answer
    x = 111,347.98

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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.