Home / 171,862.10-257,501.55-142,118.90

Finding the Fourth Proportional to 171,862.10, 257,501.55 and 142,118.90

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Solution

The fourth proportional to 171,862.10, 257,501.55 and 142,118.90 is: 212,937.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,862.10 : 257,501.55 = 142,118.90 : x
  2. Step 2: Convert to fraction form
    171,862.10/257,501.55 = 142,118.90/x
  3. Step 3: Cross multiply
    171,862.10x = 257,501.55 × 142,118.90
  4. Step 4: Simplify right side
    171,862.10x = 36,595,837,034.30
  5. Step 5: Solve for x
    x = 36,595,837,034.30/171,862.10
  6. Step 6: Final answer
    x = 212,937.22

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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.