Home / 115,130.10-172,718.73-48,570.42

Finding the Fourth Proportional to 115,130.10, 172,718.73 and 48,570.42

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Solution

The fourth proportional to 115,130.10, 172,718.73 and 48,570.42 is: 72,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,130.10 : 172,718.73 = 48,570.42 : x
  2. Step 2: Convert to fraction form
    115,130.10/172,718.73 = 48,570.42/x
  3. Step 3: Cross multiply
    115,130.10x = 172,718.73 × 48,570.42
  4. Step 4: Simplify right side
    115,130.10x = 8,389,021,257.97
  5. Step 5: Solve for x
    x = 8,389,021,257.97/115,130.10
  6. Step 6: Final answer
    x = 72,865.58

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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.