Home / 128,799.36-193,140.48-40,026.24

Finding the Fourth Proportional to 128,799.36, 193,140.48 and 40,026.24

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Solution

The fourth proportional to 128,799.36, 193,140.48 and 40,026.24 is: 60,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,799.36 : 193,140.48 = 40,026.24 : x
  2. Step 2: Convert to fraction form
    128,799.36/193,140.48 = 40,026.24/x
  3. Step 3: Cross multiply
    128,799.36x = 193,140.48 × 40,026.24
  4. Step 4: Simplify right side
    128,799.36x = 7,730,687,206.20
  5. Step 5: Solve for x
    x = 7,730,687,206.20/128,799.36
  6. Step 6: Final answer
    x = 60,021.16

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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.