Home / 113,037.80-169,556.70-68,751.40

Finding the Fourth Proportional to 113,037.80, 169,556.70 and 68,751.40

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Solution

The fourth proportional to 113,037.80, 169,556.70 and 68,751.40 is: 103,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,037.80 : 169,556.70 = 68,751.40 : x
  2. Step 2: Convert to fraction form
    113,037.80/169,556.70 = 68,751.40/x
  3. Step 3: Cross multiply
    113,037.80x = 169,556.70 × 68,751.40
  4. Step 4: Simplify right side
    113,037.80x = 11,657,260,504.38
  5. Step 5: Solve for x
    x = 11,657,260,504.38/113,037.80
  6. Step 6: Final answer
    x = 103,127.10

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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.