Home / 141,947.57-195,838.18-90,988.40

Finding the Fourth Proportional to 141,947.57, 195,838.18 and 90,988.40

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Solution

The fourth proportional to 141,947.57, 195,838.18 and 90,988.40 is: 125,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,947.57 : 195,838.18 = 90,988.40 : x
  2. Step 2: Convert to fraction form
    141,947.57/195,838.18 = 90,988.40/x
  3. Step 3: Cross multiply
    141,947.57x = 195,838.18 × 90,988.40
  4. Step 4: Simplify right side
    141,947.57x = 17,819,001,988.25
  5. Step 5: Solve for x
    x = 17,819,001,988.25/141,947.57
  6. Step 6: Final answer
    x = 125,532.28

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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.