Home / 102,713.28-141,746.40-57,992.64

Finding the Fourth Proportional to 102,713.28, 141,746.40 and 57,992.64

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Solution

The fourth proportional to 102,713.28, 141,746.40 and 57,992.64 is: 80,031.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,713.28 : 141,746.40 = 57,992.64 : x
  2. Step 2: Convert to fraction form
    102,713.28/141,746.40 = 57,992.64/x
  3. Step 3: Cross multiply
    102,713.28x = 141,746.40 × 57,992.64
  4. Step 4: Simplify right side
    102,713.28x = 8,220,247,946.50
  5. Step 5: Solve for x
    x = 8,220,247,946.50/102,713.28
  6. Step 6: Final answer
    x = 80,031.01

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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.