Home / 124,199.55-171,509.25-78,892.14

Finding the Fourth Proportional to 124,199.55, 171,509.25 and 78,892.14

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Solution

The fourth proportional to 124,199.55, 171,509.25 and 78,892.14 is: 108,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,199.55 : 171,509.25 = 78,892.14 : x
  2. Step 2: Convert to fraction form
    124,199.55/171,509.25 = 78,892.14/x
  3. Step 3: Cross multiply
    124,199.55x = 171,509.25 × 78,892.14
  4. Step 4: Simplify right side
    124,199.55x = 13,530,731,762.30
  5. Step 5: Solve for x
    x = 13,530,731,762.30/124,199.55
  6. Step 6: Final answer
    x = 108,943.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.