Home / 112,945.28-169,416.95-28,705.68

Finding the Fourth Proportional to 112,945.28, 169,416.95 and 28,705.68

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Solution

The fourth proportional to 112,945.28, 169,416.95 and 28,705.68 is: 43,058.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,945.28 : 169,416.95 = 28,705.68 : x
  2. Step 2: Convert to fraction form
    112,945.28/169,416.95 = 28,705.68/x
  3. Step 3: Cross multiply
    112,945.28x = 169,416.95 × 28,705.68
  4. Step 4: Simplify right side
    112,945.28x = 4,863,228,609.75
  5. Step 5: Solve for x
    x = 4,863,228,609.75/112,945.28
  6. Step 6: Final answer
    x = 43,058.27

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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.