Home / 115,362.40-173,140.80-52,279.60

Finding the Fourth Proportional to 115,362.40, 173,140.80 and 52,279.60

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Solution

The fourth proportional to 115,362.40, 173,140.80 and 52,279.60 is: 78,463.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,362.40 : 173,140.80 = 52,279.60 : x
  2. Step 2: Convert to fraction form
    115,362.40/173,140.80 = 52,279.60/x
  3. Step 3: Cross multiply
    115,362.40x = 173,140.80 × 52,279.60
  4. Step 4: Simplify right side
    115,362.40x = 9,051,731,767.68
  5. Step 5: Solve for x
    x = 9,051,731,767.68/115,362.40
  6. Step 6: Final answer
    x = 78,463.45

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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.