Home / 123,765.40-185,648.10-30,271.15

Finding the Fourth Proportional to 123,765.40, 185,648.10 and 30,271.15

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Solution

The fourth proportional to 123,765.40, 185,648.10 and 30,271.15 is: 45,406.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,765.40 : 185,648.10 = 30,271.15 : x
  2. Step 2: Convert to fraction form
    123,765.40/185,648.10 = 30,271.15/x
  3. Step 3: Cross multiply
    123,765.40x = 185,648.10 × 30,271.15
  4. Step 4: Simplify right side
    123,765.40x = 5,619,781,482.32
  5. Step 5: Solve for x
    x = 5,619,781,482.32/123,765.40
  6. Step 6: Final answer
    x = 45,406.73

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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.