Home / 129,557.22-178,833.75-75,859.50

Finding the Fourth Proportional to 129,557.22, 178,833.75 and 75,859.50

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Solution

The fourth proportional to 129,557.22, 178,833.75 and 75,859.50 is: 104,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,557.22 : 178,833.75 = 75,859.50 : x
  2. Step 2: Convert to fraction form
    129,557.22/178,833.75 = 75,859.50/x
  3. Step 3: Cross multiply
    129,557.22x = 178,833.75 × 75,859.50
  4. Step 4: Simplify right side
    129,557.22x = 13,566,238,858.13
  5. Step 5: Solve for x
    x = 13,566,238,858.13/129,557.22
  6. Step 6: Final answer
    x = 104,712.33

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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.