Home / 115,242.63-172,862.23-70,277.20

Finding the Fourth Proportional to 115,242.63, 172,862.23 and 70,277.20

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Solution

The fourth proportional to 115,242.63, 172,862.23 and 70,277.20 is: 105,414.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,242.63 : 172,862.23 = 70,277.20 : x
  2. Step 2: Convert to fraction form
    115,242.63/172,862.23 = 70,277.20/x
  3. Step 3: Cross multiply
    115,242.63x = 172,862.23 × 70,277.20
  4. Step 4: Simplify right side
    115,242.63x = 12,148,273,510.16
  5. Step 5: Solve for x
    x = 12,148,273,510.16/115,242.63
  6. Step 6: Final answer
    x = 105,414.75

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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.