Home / 131,563.68-181,557.60-74,975.04

Finding the Fourth Proportional to 131,563.68, 181,557.60 and 74,975.04

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Solution

The fourth proportional to 131,563.68, 181,557.60 and 74,975.04 is: 103,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,563.68 : 181,557.60 = 74,975.04 : x
  2. Step 2: Convert to fraction form
    131,563.68/181,557.60 = 74,975.04/x
  3. Step 3: Cross multiply
    131,563.68x = 181,557.60 × 74,975.04
  4. Step 4: Simplify right side
    131,563.68x = 13,612,288,322.30
  5. Step 5: Solve for x
    x = 13,612,288,322.30/131,563.68
  6. Step 6: Final answer
    x = 103,465.40

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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.