Home / 118,184.49-163,272.45-77,445.43

Finding the Fourth Proportional to 118,184.49, 163,272.45 and 77,445.43

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Solution

The fourth proportional to 118,184.49, 163,272.45 and 77,445.43 is: 106,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,184.49 : 163,272.45 = 77,445.43 : x
  2. Step 2: Convert to fraction form
    118,184.49/163,272.45 = 77,445.43/x
  3. Step 3: Cross multiply
    118,184.49x = 163,272.45 × 77,445.43
  4. Step 4: Simplify right side
    118,184.49x = 12,644,704,909.75
  5. Step 5: Solve for x
    x = 12,644,704,909.75/118,184.49
  6. Step 6: Final answer
    x = 106,991.24

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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.