Home / 115,028.10-172,321.02-70,525.08

Finding the Fourth Proportional to 115,028.10, 172,321.02 and 70,525.08

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Solution

The fourth proportional to 115,028.10, 172,321.02 and 70,525.08 is: 105,652.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,028.10 : 172,321.02 = 70,525.08 : x
  2. Step 2: Convert to fraction form
    115,028.10/172,321.02 = 70,525.08/x
  3. Step 3: Cross multiply
    115,028.10x = 172,321.02 × 70,525.08
  4. Step 4: Simplify right side
    115,028.10x = 12,152,953,721.18
  5. Step 5: Solve for x
    x = 12,152,953,721.18/115,028.10
  6. Step 6: Final answer
    x = 105,652.04

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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.