Home / 109,386.20-164,079.30-93,639.80

Finding the Fourth Proportional to 109,386.20, 164,079.30 and 93,639.80

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Solution

The fourth proportional to 109,386.20, 164,079.30 and 93,639.80 is: 140,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,386.20 : 164,079.30 = 93,639.80 : x
  2. Step 2: Convert to fraction form
    109,386.20/164,079.30 = 93,639.80/x
  3. Step 3: Cross multiply
    109,386.20x = 164,079.30 × 93,639.80
  4. Step 4: Simplify right side
    109,386.20x = 15,364,352,836.14
  5. Step 5: Solve for x
    x = 15,364,352,836.14/109,386.20
  6. Step 6: Final answer
    x = 140,459.70

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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.