Home / 136,945.20-205,417.80-125,540.40

Finding the Fourth Proportional to 136,945.20, 205,417.80 and 125,540.40

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Solution

The fourth proportional to 136,945.20, 205,417.80 and 125,540.40 is: 188,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,945.20 : 205,417.80 = 125,540.40 : x
  2. Step 2: Convert to fraction form
    136,945.20/205,417.80 = 125,540.40/x
  3. Step 3: Cross multiply
    136,945.20x = 205,417.80 × 125,540.40
  4. Step 4: Simplify right side
    136,945.20x = 25,788,232,779.12
  5. Step 5: Solve for x
    x = 25,788,232,779.12/136,945.20
  6. Step 6: Final answer
    x = 188,310.60

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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.