Home / 145,393.07-200,641.29-80,862.86

Finding the Fourth Proportional to 145,393.07, 200,641.29 and 80,862.86

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Solution

The fourth proportional to 145,393.07, 200,641.29 and 80,862.86 is: 111,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,393.07 : 200,641.29 = 80,862.86 : x
  2. Step 2: Convert to fraction form
    145,393.07/200,641.29 = 80,862.86/x
  3. Step 3: Cross multiply
    145,393.07x = 200,641.29 × 80,862.86
  4. Step 4: Simplify right side
    145,393.07x = 16,224,427,540.28
  5. Step 5: Solve for x
    x = 16,224,427,540.28/145,393.07
  6. Step 6: Final answer
    x = 111,590.11

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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.