Home / 208,531.80-287,775.36-113,040

Finding the Fourth Proportional to 208,531.80, 287,775.36 and 113,040

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Solution

The fourth proportional to 208,531.80, 287,775.36 and 113,040 is: 155,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,531.80 : 287,775.36 = 113,040 : x
  2. Step 2: Convert to fraction form
    208,531.80/287,775.36 = 113,040/x
  3. Step 3: Cross multiply
    208,531.80x = 287,775.36 × 113,040
  4. Step 4: Simplify right side
    208,531.80x = 32,530,126,694.40
  5. Step 5: Solve for x
    x = 32,530,126,694.40/208,531.80
  6. Step 6: Final answer
    x = 155,996.00

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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.