Home / 142,436.39-196,554.27-77,892.89

Finding the Fourth Proportional to 142,436.39, 196,554.27 and 77,892.89

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Solution

The fourth proportional to 142,436.39, 196,554.27 and 77,892.89 is: 107,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,436.39 : 196,554.27 = 77,892.89 : x
  2. Step 2: Convert to fraction form
    142,436.39/196,554.27 = 77,892.89/x
  3. Step 3: Cross multiply
    142,436.39x = 196,554.27 × 77,892.89
  4. Step 4: Simplify right side
    142,436.39x = 15,310,180,132.14
  5. Step 5: Solve for x
    x = 15,310,180,132.14/142,436.39
  6. Step 6: Final answer
    x = 107,487.84

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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.