Home / 90,196.47-135,341.40-65,440.85

Finding the Fourth Proportional to 90,196.47, 135,341.40 and 65,440.85

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Solution

The fourth proportional to 90,196.47, 135,341.40 and 65,440.85 is: 98,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,196.47 : 135,341.40 = 65,440.85 : x
  2. Step 2: Convert to fraction form
    90,196.47/135,341.40 = 65,440.85/x
  3. Step 3: Cross multiply
    90,196.47x = 135,341.40 × 65,440.85
  4. Step 4: Simplify right side
    90,196.47x = 8,856,856,256.19
  5. Step 5: Solve for x
    x = 8,856,856,256.19/90,196.47
  6. Step 6: Final answer
    x = 98,195.15

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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.