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Finding the Fourth Proportional to 121,804.20, 182,447.10 and 98,476.20

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Solution

The fourth proportional to 121,804.20, 182,447.10 and 98,476.20 is: 147,504.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,804.20 : 182,447.10 = 98,476.20 : x
  2. Step 2: Convert to fraction form
    121,804.20/182,447.10 = 98,476.20/x
  3. Step 3: Cross multiply
    121,804.20x = 182,447.10 × 98,476.20
  4. Step 4: Simplify right side
    121,804.20x = 17,966,697,109.02
  5. Step 5: Solve for x
    x = 17,966,697,109.02/121,804.20
  6. Step 6: Final answer
    x = 147,504.74

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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.