Home / 103,785.20-155,677.80-93,615.65

Finding the Fourth Proportional to 103,785.20, 155,677.80 and 93,615.65

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Solution

The fourth proportional to 103,785.20, 155,677.80 and 93,615.65 is: 140,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,785.20 : 155,677.80 = 93,615.65 : x
  2. Step 2: Convert to fraction form
    103,785.20/155,677.80 = 93,615.65/x
  3. Step 3: Cross multiply
    103,785.20x = 155,677.80 × 93,615.65
  4. Step 4: Simplify right side
    103,785.20x = 14,573,878,437.57
  5. Step 5: Solve for x
    x = 14,573,878,437.57/103,785.20
  6. Step 6: Final answer
    x = 140,423.48

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1.5x scale

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.