Home / 134,131.10-185,117.01-80,445.65

Finding the Fourth Proportional to 134,131.10, 185,117.01 and 80,445.65

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Solution

The fourth proportional to 134,131.10, 185,117.01 and 80,445.65 is: 111,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,131.10 : 185,117.01 = 80,445.65 : x
  2. Step 2: Convert to fraction form
    134,131.10/185,117.01 = 80,445.65/x
  3. Step 3: Cross multiply
    134,131.10x = 185,117.01 × 80,445.65
  4. Step 4: Simplify right side
    134,131.10x = 14,891,858,195.51
  5. Step 5: Solve for x
    x = 14,891,858,195.51/134,131.10
  6. Step 6: Final answer
    x = 111,024.65

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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.