Home / 138,873.06-191,645.07-75,210.86

Finding the Fourth Proportional to 138,873.06, 191,645.07 and 75,210.86

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Solution

The fourth proportional to 138,873.06, 191,645.07 and 75,210.86 is: 103,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,873.06 : 191,645.07 = 75,210.86 : x
  2. Step 2: Convert to fraction form
    138,873.06/191,645.07 = 75,210.86/x
  3. Step 3: Cross multiply
    138,873.06x = 191,645.07 × 75,210.86
  4. Step 4: Simplify right side
    138,873.06x = 14,413,790,153.41
  5. Step 5: Solve for x
    x = 14,413,790,153.41/138,873.06
  6. Step 6: Final answer
    x = 103,791.12

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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.