Home / 236,947.12-326,987.03-129,517.57

Finding the Fourth Proportional to 236,947.12, 326,987.03 and 129,517.57

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Solution

The fourth proportional to 236,947.12, 326,987.03 and 129,517.57 is: 178,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,947.12 : 326,987.03 = 129,517.57 : x
  2. Step 2: Convert to fraction form
    236,947.12/326,987.03 = 129,517.57/x
  3. Step 3: Cross multiply
    236,947.12x = 326,987.03 × 129,517.57
  4. Step 4: Simplify right side
    236,947.12x = 42,350,565,547.12
  5. Step 5: Solve for x
    x = 42,350,565,547.12/236,947.12
  6. Step 6: Final answer
    x = 178,734.25

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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.