Home / 103,016.46-142,138.35-58,304.46

Finding the Fourth Proportional to 103,016.46, 142,138.35 and 58,304.46

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Solution

The fourth proportional to 103,016.46, 142,138.35 and 58,304.46 is: 80,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,016.46 : 142,138.35 = 58,304.46 : x
  2. Step 2: Convert to fraction form
    103,016.46/142,138.35 = 58,304.46/x
  3. Step 3: Cross multiply
    103,016.46x = 142,138.35 × 58,304.46
  4. Step 4: Simplify right side
    103,016.46x = 8,287,299,742.04
  5. Step 5: Solve for x
    x = 8,287,299,742.04/103,016.46
  6. Step 6: Final answer
    x = 80,446.36

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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.