Home / 165,117.33-247,646.66-75,139.18

Finding the Fourth Proportional to 165,117.33, 247,646.66 and 75,139.18

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Solution

The fourth proportional to 165,117.33, 247,646.66 and 75,139.18 is: 112,695.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,117.33 : 247,646.66 = 75,139.18 : x
  2. Step 2: Convert to fraction form
    165,117.33/247,646.66 = 75,139.18/x
  3. Step 3: Cross multiply
    165,117.33x = 247,646.66 × 75,139.18
  4. Step 4: Simplify right side
    165,117.33x = 18,607,965,967.33
  5. Step 5: Solve for x
    x = 18,607,965,967.33/165,117.33
  6. Step 6: Final answer
    x = 112,695.41

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1.5x scale

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.