Home / 124,723.48-172,115.81-70,278.46

Finding the Fourth Proportional to 124,723.48, 172,115.81 and 70,278.46

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Solution

The fourth proportional to 124,723.48, 172,115.81 and 70,278.46 is: 96,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,723.48 : 172,115.81 = 70,278.46 : x
  2. Step 2: Convert to fraction form
    124,723.48/172,115.81 = 70,278.46/x
  3. Step 3: Cross multiply
    124,723.48x = 172,115.81 × 70,278.46
  4. Step 4: Simplify right side
    124,723.48x = 12,096,034,068.45
  5. Step 5: Solve for x
    x = 12,096,034,068.45/124,723.48
  6. Step 6: Final answer
    x = 96,982.81

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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.