Home / 205,004.80-307,507.20-125,862.40

Finding the Fourth Proportional to 205,004.80, 307,507.20 and 125,862.40

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Solution

The fourth proportional to 205,004.80, 307,507.20 and 125,862.40 is: 188,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,004.80 : 307,507.20 = 125,862.40 : x
  2. Step 2: Convert to fraction form
    205,004.80/307,507.20 = 125,862.40/x
  3. Step 3: Cross multiply
    205,004.80x = 307,507.20 × 125,862.40
  4. Step 4: Simplify right side
    205,004.80x = 38,703,594,209.28
  5. Step 5: Solve for x
    x = 38,703,594,209.28/205,004.80
  6. Step 6: Final answer
    x = 188,793.60

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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.