Home / 115,255.90-172,880.81-48,678.15

Finding the Fourth Proportional to 115,255.90, 172,880.81 and 48,678.15

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Solution

The fourth proportional to 115,255.90, 172,880.81 and 48,678.15 is: 73,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,255.90 : 172,880.81 = 48,678.15 : x
  2. Step 2: Convert to fraction form
    115,255.90/172,880.81 = 48,678.15/x
  3. Step 3: Cross multiply
    115,255.90x = 172,880.81 × 48,678.15
  4. Step 4: Simplify right side
    115,255.90x = 8,415,518,001.30
  5. Step 5: Solve for x
    x = 8,415,518,001.30/115,255.90
  6. Step 6: Final answer
    x = 73,015.94

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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.