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Finding the Fourth Proportional to 121,574.40, 182,054.40 and 96,998.40

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Solution

The fourth proportional to 121,574.40, 182,054.40 and 96,998.40 is: 145,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,574.40 : 182,054.40 = 96,998.40 : x
  2. Step 2: Convert to fraction form
    121,574.40/182,054.40 = 96,998.40/x
  3. Step 3: Cross multiply
    121,574.40x = 182,054.40 × 96,998.40
  4. Step 4: Simplify right side
    121,574.40x = 17,658,985,512.96
  5. Step 5: Solve for x
    x = 17,658,985,512.96/121,574.40
  6. Step 6: Final answer
    x = 145,252.50

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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.