Home / 141,452.37-195,196.10-77,790.20

Finding the Fourth Proportional to 141,452.37, 195,196.10 and 77,790.20

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Solution

The fourth proportional to 141,452.37, 195,196.10 and 77,790.20 is: 107,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,452.37 : 195,196.10 = 77,790.20 : x
  2. Step 2: Convert to fraction form
    141,452.37/195,196.10 = 77,790.20/x
  3. Step 3: Cross multiply
    141,452.37x = 195,196.10 × 77,790.20
  4. Step 4: Simplify right side
    141,452.37x = 15,184,342,293.29
  5. Step 5: Solve for x
    x = 15,184,342,293.29/141,452.37
  6. Step 6: Final answer
    x = 107,345.97

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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.