Home / 134,778.40-202,167.60-128,217.40

Finding the Fourth Proportional to 134,778.40, 202,167.60 and 128,217.40

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Solution

The fourth proportional to 134,778.40, 202,167.60 and 128,217.40 is: 192,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,778.40 : 202,167.60 = 128,217.40 : x
  2. Step 2: Convert to fraction form
    134,778.40/202,167.60 = 128,217.40/x
  3. Step 3: Cross multiply
    134,778.40x = 202,167.60 × 128,217.40
  4. Step 4: Simplify right side
    134,778.40x = 25,921,404,036.24
  5. Step 5: Solve for x
    x = 25,921,404,036.24/134,778.40
  6. Step 6: Final answer
    x = 192,326.10

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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.