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Finding the Fourth Proportional to 96,347.70, 144,435.15 and 85,850.10

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Solution

The fourth proportional to 96,347.70, 144,435.15 and 85,850.10 is: 128,698.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,347.70 : 144,435.15 = 85,850.10 : x
  2. Step 2: Convert to fraction form
    96,347.70/144,435.15 = 85,850.10/x
  3. Step 3: Cross multiply
    96,347.70x = 144,435.15 × 85,850.10
  4. Step 4: Simplify right side
    96,347.70x = 12,399,772,071.02
  5. Step 5: Solve for x
    x = 12,399,772,071.02/96,347.70
  6. Step 6: Final answer
    x = 128,698.16

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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.