Home / 115,318.83-172,985.54-48,746.55

Finding the Fourth Proportional to 115,318.83, 172,985.54 and 48,746.55

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Solution

The fourth proportional to 115,318.83, 172,985.54 and 48,746.55 is: 73,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,318.83 : 172,985.54 = 48,746.55 : x
  2. Step 2: Convert to fraction form
    115,318.83/172,985.54 = 48,746.55/x
  3. Step 3: Cross multiply
    115,318.83x = 172,985.54 × 48,746.55
  4. Step 4: Simplify right side
    115,318.83x = 8,432,448,031.15
  5. Step 5: Solve for x
    x = 8,432,448,031.15/115,318.83
  6. Step 6: Final answer
    x = 73,122.91

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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.