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Finding the Fourth Proportional to 96,542.70, 144,814.05 and 84,878.70

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Solution

The fourth proportional to 96,542.70, 144,814.05 and 84,878.70 is: 127,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,542.70 : 144,814.05 = 84,878.70 : x
  2. Step 2: Convert to fraction form
    96,542.70/144,814.05 = 84,878.70/x
  3. Step 3: Cross multiply
    96,542.70x = 144,814.05 × 84,878.70
  4. Step 4: Simplify right side
    96,542.70x = 12,291,628,305.74
  5. Step 5: Solve for x
    x = 12,291,628,305.74/96,542.70
  6. Step 6: Final answer
    x = 127,318.05

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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.