Home / 115,456.40-173,184.60-70,938.80

Finding the Fourth Proportional to 115,456.40, 173,184.60 and 70,938.80

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Solution

The fourth proportional to 115,456.40, 173,184.60 and 70,938.80 is: 106,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,456.40 : 173,184.60 = 70,938.80 : x
  2. Step 2: Convert to fraction form
    115,456.40/173,184.60 = 70,938.80/x
  3. Step 3: Cross multiply
    115,456.40x = 173,184.60 × 70,938.80
  4. Step 4: Simplify right side
    115,456.40x = 12,285,507,702.48
  5. Step 5: Solve for x
    x = 12,285,507,702.48/115,456.40
  6. Step 6: Final answer
    x = 106,408.20

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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.