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Finding the Fourth Proportional to 121,510.40, 182,265.60 and 110,429.60

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Solution

The fourth proportional to 121,510.40, 182,265.60 and 110,429.60 is: 165,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,510.40 : 182,265.60 = 110,429.60 : x
  2. Step 2: Convert to fraction form
    121,510.40/182,265.60 = 110,429.60/x
  3. Step 3: Cross multiply
    121,510.40x = 182,265.60 × 110,429.60
  4. Step 4: Simplify right side
    121,510.40x = 20,127,517,301.76
  5. Step 5: Solve for x
    x = 20,127,517,301.76/121,510.40
  6. Step 6: Final answer
    x = 165,644.40

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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.