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Finding the Fourth Proportional to 121,970.71, 182,857.45 and 50,947.76

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Solution

The fourth proportional to 121,970.71, 182,857.45 and 50,947.76 is: 76,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,970.71 : 182,857.45 = 50,947.76 : x
  2. Step 2: Convert to fraction form
    121,970.71/182,857.45 = 50,947.76/x
  3. Step 3: Cross multiply
    121,970.71x = 182,857.45 × 50,947.76
  4. Step 4: Simplify right side
    121,970.71x = 9,316,177,476.81
  5. Step 5: Solve for x
    x = 9,316,177,476.81/121,970.71
  6. Step 6: Final answer
    x = 76,380.45

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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.