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Finding the Fourth Proportional to 121,959.40, 182,952.54 and 38,834.28

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Solution

The fourth proportional to 121,959.40, 182,952.54 and 38,834.28 is: 58,255.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,959.40 : 182,952.54 = 38,834.28 : x
  2. Step 2: Convert to fraction form
    121,959.40/182,952.54 = 38,834.28/x
  3. Step 3: Cross multiply
    121,959.40x = 182,952.54 × 38,834.28
  4. Step 4: Simplify right side
    121,959.40x = 7,104,830,165.07
  5. Step 5: Solve for x
    x = 7,104,830,165.07/121,959.40
  6. Step 6: Final answer
    x = 58,255.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.