Home / 142,701.41-196,925.81-78,170.13

Finding the Fourth Proportional to 142,701.41, 196,925.81 and 78,170.13

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Solution

The fourth proportional to 142,701.41, 196,925.81 and 78,170.13 is: 107,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,701.41 : 196,925.81 = 78,170.13 : x
  2. Step 2: Convert to fraction form
    142,701.41/196,925.81 = 78,170.13/x
  3. Step 3: Cross multiply
    142,701.41x = 196,925.81 × 78,170.13
  4. Step 4: Simplify right side
    142,701.41x = 15,393,715,777.20
  5. Step 5: Solve for x
    x = 15,393,715,777.20/142,701.41
  6. Step 6: Final answer
    x = 107,873.60

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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.