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Finding the Fourth Proportional to 121,852.40, 182,519.40 and 101,116.40

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Solution

The fourth proportional to 121,852.40, 182,519.40 and 101,116.40 is: 151,459.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,852.40 : 182,519.40 = 101,116.40 : x
  2. Step 2: Convert to fraction form
    121,852.40/182,519.40 = 101,116.40/x
  3. Step 3: Cross multiply
    121,852.40x = 182,519.40 × 101,116.40
  4. Step 4: Simplify right side
    121,852.40x = 18,455,704,658.16
  5. Step 5: Solve for x
    x = 18,455,704,658.16/121,852.40
  6. Step 6: Final answer
    x = 151,459.51

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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.