Home / 100,887.18-139,227.89-62,667.66

Finding the Fourth Proportional to 100,887.18, 139,227.89 and 62,667.66

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Solution

The fourth proportional to 100,887.18, 139,227.89 and 62,667.66 is: 86,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,887.18 : 139,227.89 = 62,667.66 : x
  2. Step 2: Convert to fraction form
    100,887.18/139,227.89 = 62,667.66/x
  3. Step 3: Cross multiply
    100,887.18x = 139,227.89 × 62,667.66
  4. Step 4: Simplify right side
    100,887.18x = 8,725,085,759.70
  5. Step 5: Solve for x
    x = 8,725,085,759.70/100,887.18
  6. Step 6: Final answer
    x = 86,483.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.