Home / 103,424.19-142,630.55-67,087.76

Finding the Fourth Proportional to 103,424.19, 142,630.55 and 67,087.76

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Solution

The fourth proportional to 103,424.19, 142,630.55 and 67,087.76 is: 92,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,424.19 : 142,630.55 = 67,087.76 : x
  2. Step 2: Convert to fraction form
    103,424.19/142,630.55 = 67,087.76/x
  3. Step 3: Cross multiply
    103,424.19x = 142,630.55 × 67,087.76
  4. Step 4: Simplify right side
    103,424.19x = 9,568,763,058.48
  5. Step 5: Solve for x
    x = 9,568,763,058.48/103,424.19
  6. Step 6: Final answer
    x = 92,519.58

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1.5x scale

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.