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Finding the Fourth Proportional to 121,307.40, 181,969.20 and 41,344.20

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Solution

The fourth proportional to 121,307.40, 181,969.20 and 41,344.20 is: 62,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,307.40 : 181,969.20 = 41,344.20 : x
  2. Step 2: Convert to fraction form
    121,307.40/181,969.20 = 41,344.20/x
  3. Step 3: Cross multiply
    121,307.40x = 181,969.20 × 41,344.20
  4. Step 4: Simplify right side
    121,307.40x = 7,523,370,998.64
  5. Step 5: Solve for x
    x = 7,523,370,998.64/121,307.40
  6. Step 6: Final answer
    x = 62,019.06

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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.