Home / 103,251.48-142,537.10-69,247.55

Finding the Fourth Proportional to 103,251.48, 142,537.10 and 69,247.55

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Solution

The fourth proportional to 103,251.48, 142,537.10 and 69,247.55 is: 95,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,251.48 : 142,537.10 = 69,247.55 : x
  2. Step 2: Convert to fraction form
    103,251.48/142,537.10 = 69,247.55/x
  3. Step 3: Cross multiply
    103,251.48x = 142,537.10 × 69,247.55
  4. Step 4: Simplify right side
    103,251.48x = 9,870,343,900.18
  5. Step 5: Solve for x
    x = 9,870,343,900.18/103,251.48
  6. Step 6: Final answer
    x = 95,595.18

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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.