Home / 115,747.40-173,621.10-70,646.60

Finding the Fourth Proportional to 115,747.40, 173,621.10 and 70,646.60

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Solution

The fourth proportional to 115,747.40, 173,621.10 and 70,646.60 is: 105,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,747.40 : 173,621.10 = 70,646.60 : x
  2. Step 2: Convert to fraction form
    115,747.40/173,621.10 = 70,646.60/x
  3. Step 3: Cross multiply
    115,747.40x = 173,621.10 × 70,646.60
  4. Step 4: Simplify right side
    115,747.40x = 12,265,740,403.26
  5. Step 5: Solve for x
    x = 12,265,740,403.26/115,747.40
  6. Step 6: Final answer
    x = 105,969.90

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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.