Home / 115,501.18-172,962.60-73,253.20

Finding the Fourth Proportional to 115,501.18, 172,962.60 and 73,253.20

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Solution

The fourth proportional to 115,501.18, 172,962.60 and 73,253.20 is: 109,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,501.18 : 172,962.60 = 73,253.20 : x
  2. Step 2: Convert to fraction form
    115,501.18/172,962.60 = 73,253.20/x
  3. Step 3: Cross multiply
    115,501.18x = 172,962.60 × 73,253.20
  4. Step 4: Simplify right side
    115,501.18x = 12,670,063,930.32
  5. Step 5: Solve for x
    x = 12,670,063,930.32/115,501.18
  6. Step 6: Final answer
    x = 109,696.40

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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.