Home / 134,130.60-185,116.32-80,445.15

Finding the Fourth Proportional to 134,130.60, 185,116.32 and 80,445.15

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Solution

The fourth proportional to 134,130.60, 185,116.32 and 80,445.15 is: 111,023.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,130.60 : 185,116.32 = 80,445.15 : x
  2. Step 2: Convert to fraction form
    134,130.60/185,116.32 = 80,445.15/x
  3. Step 3: Cross multiply
    134,130.60x = 185,116.32 × 80,445.15
  4. Step 4: Simplify right side
    134,130.60x = 14,891,710,129.85
  5. Step 5: Solve for x
    x = 14,891,710,129.85/134,130.60
  6. Step 6: Final answer
    x = 111,023.96

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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.