Home / 143,921.04-198,434.52-118,338

Finding the Fourth Proportional to 143,921.04, 198,434.52 and 118,338

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Solution

The fourth proportional to 143,921.04, 198,434.52 and 118,338 is: 163,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,921.04 : 198,434.52 = 118,338 : x
  2. Step 2: Convert to fraction form
    143,921.04/198,434.52 = 118,338/x
  3. Step 3: Cross multiply
    143,921.04x = 198,434.52 × 118,338
  4. Step 4: Simplify right side
    143,921.04x = 23,482,344,227.76
  5. Step 5: Solve for x
    x = 23,482,344,227.76/143,921.04
  6. Step 6: Final answer
    x = 163,161.30

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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.