Home / 236,490.12-326,357.48-129,062.40

Finding the Fourth Proportional to 236,490.12, 326,357.48 and 129,062.40

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Solution

The fourth proportional to 236,490.12, 326,357.48 and 129,062.40 is: 178,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,490.12 : 326,357.48 = 129,062.40 : x
  2. Step 2: Convert to fraction form
    236,490.12/326,357.48 = 129,062.40/x
  3. Step 3: Cross multiply
    236,490.12x = 326,357.48 × 129,062.40
  4. Step 4: Simplify right side
    236,490.12x = 42,120,479,626.75
  5. Step 5: Solve for x
    x = 42,120,479,626.75/236,490.12
  6. Step 6: Final answer
    x = 178,106.72

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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.