Home / 124,030.20-185,840.10-71,347.80

Finding the Fourth Proportional to 124,030.20, 185,840.10 and 71,347.80

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Solution

The fourth proportional to 124,030.20, 185,840.10 and 71,347.80 is: 106,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,030.20 : 185,840.10 = 71,347.80 : x
  2. Step 2: Convert to fraction form
    124,030.20/185,840.10 = 71,347.80/x
  3. Step 3: Cross multiply
    124,030.20x = 185,840.10 × 71,347.80
  4. Step 4: Simplify right side
    124,030.20x = 13,259,282,286.78
  5. Step 5: Solve for x
    x = 13,259,282,286.78/124,030.20
  6. Step 6: Final answer
    x = 106,903.66

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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.