Home / 122,751.18-169,355.90-100,051.13

Finding the Fourth Proportional to 122,751.18, 169,355.90 and 100,051.13

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Solution

The fourth proportional to 122,751.18, 169,355.90 and 100,051.13 is: 138,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,751.18 : 169,355.90 = 100,051.13 : x
  2. Step 2: Convert to fraction form
    122,751.18/169,355.90 = 100,051.13/x
  3. Step 3: Cross multiply
    122,751.18x = 169,355.90 × 100,051.13
  4. Step 4: Simplify right side
    122,751.18x = 16,944,247,820.13
  5. Step 5: Solve for x
    x = 16,944,247,820.13/122,751.18
  6. Step 6: Final answer
    x = 138,037.35

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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.