Home / 124,367.40-171,606.60-76,617.90

Finding the Fourth Proportional to 124,367.40, 171,606.60 and 76,617.90

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Solution

The fourth proportional to 124,367.40, 171,606.60 and 76,617.90 is: 105,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,367.40 : 171,606.60 = 76,617.90 : x
  2. Step 2: Convert to fraction form
    124,367.40/171,606.60 = 76,617.90/x
  3. Step 3: Cross multiply
    124,367.40x = 171,606.60 × 76,617.90
  4. Step 4: Simplify right side
    124,367.40x = 13,148,137,318.14
  5. Step 5: Solve for x
    x = 13,148,137,318.14/124,367.40
  6. Step 6: Final answer
    x = 105,720.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.