Home / 106,761.18-146,905.47-103,514.70

Finding the Fourth Proportional to 106,761.18, 146,905.47 and 103,514.70

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Solution

The fourth proportional to 106,761.18, 146,905.47 and 103,514.70 is: 142,438.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,761.18 : 146,905.47 = 103,514.70 : x
  2. Step 2: Convert to fraction form
    106,761.18/146,905.47 = 103,514.70/x
  3. Step 3: Cross multiply
    106,761.18x = 146,905.47 × 103,514.70
  4. Step 4: Simplify right side
    106,761.18x = 15,206,875,655.41
  5. Step 5: Solve for x
    x = 15,206,875,655.41/106,761.18
  6. Step 6: Final answer
    x = 142,438.25

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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.