Home / 96,730.20-145,095.30-89,731.80

Finding the Fourth Proportional to 96,730.20, 145,095.30 and 89,731.80

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Solution

The fourth proportional to 96,730.20, 145,095.30 and 89,731.80 is: 134,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,730.20 : 145,095.30 = 89,731.80 : x
  2. Step 2: Convert to fraction form
    96,730.20/145,095.30 = 89,731.80/x
  3. Step 3: Cross multiply
    96,730.20x = 145,095.30 × 89,731.80
  4. Step 4: Simplify right side
    96,730.20x = 13,019,662,440.54
  5. Step 5: Solve for x
    x = 13,019,662,440.54/96,730.20
  6. Step 6: Final answer
    x = 134,597.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.