Home / 124,869.40-172,300.44-71,156.68

Finding the Fourth Proportional to 124,869.40, 172,300.44 and 71,156.68

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Solution

The fourth proportional to 124,869.40, 172,300.44 and 71,156.68 is: 98,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,869.40 : 172,300.44 = 71,156.68 : x
  2. Step 2: Convert to fraction form
    124,869.40/172,300.44 = 71,156.68/x
  3. Step 3: Cross multiply
    124,869.40x = 172,300.44 × 71,156.68
  4. Step 4: Simplify right side
    124,869.40x = 12,260,327,272.94
  5. Step 5: Solve for x
    x = 12,260,327,272.94/124,869.40
  6. Step 6: Final answer
    x = 98,185.20

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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.