Home / 106,206.40-159,309.20-39,663.28

Finding the Fourth Proportional to 106,206.40, 159,309.20 and 39,663.28

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Solution

The fourth proportional to 106,206.40, 159,309.20 and 39,663.28 is: 59,494.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,206.40 : 159,309.20 = 39,663.28 : x
  2. Step 2: Convert to fraction form
    106,206.40/159,309.20 = 39,663.28/x
  3. Step 3: Cross multiply
    106,206.40x = 159,309.20 × 39,663.28
  4. Step 4: Simplify right side
    106,206.40x = 6,318,725,207.86
  5. Step 5: Solve for x
    x = 6,318,725,207.86/106,206.40
  6. Step 6: Final answer
    x = 59,494.77

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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.