Home / 115,749.40-173,624.10-70,648.60

Finding the Fourth Proportional to 115,749.40, 173,624.10 and 70,648.60

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Solution

The fourth proportional to 115,749.40, 173,624.10 and 70,648.60 is: 105,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,749.40 : 173,624.10 = 70,648.60 : x
  2. Step 2: Convert to fraction form
    115,749.40/173,624.10 = 70,648.60/x
  3. Step 3: Cross multiply
    115,749.40x = 173,624.10 × 70,648.60
  4. Step 4: Simplify right side
    115,749.40x = 12,266,299,591.26
  5. Step 5: Solve for x
    x = 12,266,299,591.26/115,749.40
  6. Step 6: Final answer
    x = 105,972.90

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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.