Home / 134,126.80-185,111.08-80,441.35

Finding the Fourth Proportional to 134,126.80, 185,111.08 and 80,441.35

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Solution

The fourth proportional to 134,126.80, 185,111.08 and 80,441.35 is: 111,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,126.80 : 185,111.08 = 80,441.35 : x
  2. Step 2: Convert to fraction form
    134,126.80/185,111.08 = 80,441.35/x
  3. Step 3: Cross multiply
    134,126.80x = 185,111.08 × 80,441.35
  4. Step 4: Simplify right side
    134,126.80x = 14,890,585,778.77
  5. Step 5: Solve for x
    x = 14,890,585,778.77/134,126.80
  6. Step 6: Final answer
    x = 111,018.72

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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.