Home / 103,407.36-142,758.96-62,579.10

Finding the Fourth Proportional to 103,407.36, 142,758.96 and 62,579.10

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Solution

The fourth proportional to 103,407.36, 142,758.96 and 62,579.10 is: 86,393.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,407.36 : 142,758.96 = 62,579.10 : x
  2. Step 2: Convert to fraction form
    103,407.36/142,758.96 = 62,579.10/x
  3. Step 3: Cross multiply
    103,407.36x = 142,758.96 × 62,579.10
  4. Step 4: Simplify right side
    103,407.36x = 8,933,727,233.74
  5. Step 5: Solve for x
    x = 8,933,727,233.74/103,407.36
  6. Step 6: Final answer
    x = 86,393.53

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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.