Home / 134,854.32-202,218.91-78,710.59

Finding the Fourth Proportional to 134,854.32, 202,218.91 and 78,710.59

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Solution

The fourth proportional to 134,854.32, 202,218.91 and 78,710.59 is: 118,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,854.32 : 202,218.91 = 78,710.59 : x
  2. Step 2: Convert to fraction form
    134,854.32/202,218.91 = 78,710.59/x
  3. Step 3: Cross multiply
    134,854.32x = 202,218.91 × 78,710.59
  4. Step 4: Simplify right side
    134,854.32x = 15,916,769,012.93
  5. Step 5: Solve for x
    x = 15,916,769,012.93/134,854.32
  6. Step 6: Final answer
    x = 118,029.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.