Home / 142,084.25-196,073.26-77,551.35

Finding the Fourth Proportional to 142,084.25, 196,073.26 and 77,551.35

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Solution

The fourth proportional to 142,084.25, 196,073.26 and 77,551.35 is: 107,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,084.25 : 196,073.26 = 77,551.35 : x
  2. Step 2: Convert to fraction form
    142,084.25/196,073.26 = 77,551.35/x
  3. Step 3: Cross multiply
    142,084.25x = 196,073.26 × 77,551.35
  4. Step 4: Simplify right side
    142,084.25x = 15,205,745,031.53
  5. Step 5: Solve for x
    x = 15,205,745,031.53/142,084.25
  6. Step 6: Final answer
    x = 107,019.22

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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.