Home / 134,117.10-185,097.69-80,431.65

Finding the Fourth Proportional to 134,117.10, 185,097.69 and 80,431.65

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Solution

The fourth proportional to 134,117.10, 185,097.69 and 80,431.65 is: 111,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,117.10 : 185,097.69 = 80,431.65 : x
  2. Step 2: Convert to fraction form
    134,117.10/185,097.69 = 80,431.65/x
  3. Step 3: Cross multiply
    134,117.10x = 185,097.69 × 80,431.65
  4. Step 4: Simplify right side
    134,117.10x = 14,887,712,617.89
  5. Step 5: Solve for x
    x = 14,887,712,617.89/134,117.10
  6. Step 6: Final answer
    x = 111,005.33

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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.