Home / 118,543.30-163,773.95-99,393.38

Finding the Fourth Proportional to 118,543.30, 163,773.95 and 99,393.38

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Solution

The fourth proportional to 118,543.30, 163,773.95 and 99,393.38 is: 137,317.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,543.30 : 163,773.95 = 99,393.38 : x
  2. Step 2: Convert to fraction form
    118,543.30/163,773.95 = 99,393.38/x
  3. Step 3: Cross multiply
    118,543.30x = 163,773.95 × 99,393.38
  4. Step 4: Simplify right side
    118,543.30x = 16,278,046,303.85
  5. Step 5: Solve for x
    x = 16,278,046,303.85/118,543.30
  6. Step 6: Final answer
    x = 137,317.31

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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.