Home / 125,993.24-188,990.28-86,430.42

Finding the Fourth Proportional to 125,993.24, 188,990.28 and 86,430.42

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Solution

The fourth proportional to 125,993.24, 188,990.28 and 86,430.42 is: 129,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,993.24 : 188,990.28 = 86,430.42 : x
  2. Step 2: Convert to fraction form
    125,993.24/188,990.28 = 86,430.42/x
  3. Step 3: Cross multiply
    125,993.24x = 188,990.28 × 86,430.42
  4. Step 4: Simplify right side
    125,993.24x = 16,334,509,276.32
  5. Step 5: Solve for x
    x = 16,334,509,276.32/125,993.24
  6. Step 6: Final answer
    x = 129,645.92

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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.