Home / 126,918.34-175,147.32-70,329.72

Finding the Fourth Proportional to 126,918.34, 175,147.32 and 70,329.72

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Solution

The fourth proportional to 126,918.34, 175,147.32 and 70,329.72 is: 97,055.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,918.34 : 175,147.32 = 70,329.72 : x
  2. Step 2: Convert to fraction form
    126,918.34/175,147.32 = 70,329.72/x
  3. Step 3: Cross multiply
    126,918.34x = 175,147.32 × 70,329.72
  4. Step 4: Simplify right side
    126,918.34x = 12,318,061,974.35
  5. Step 5: Solve for x
    x = 12,318,061,974.35/126,918.34
  6. Step 6: Final answer
    x = 97,055.02

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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.