Home / 121,802.36-182,244.16-71,909.60

Finding the Fourth Proportional to 121,802.36, 182,244.16 and 71,909.60

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Solution

The fourth proportional to 121,802.36, 182,244.16 and 71,909.60 is: 107,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,802.36 : 182,244.16 = 71,909.60 : x
  2. Step 2: Convert to fraction form
    121,802.36/182,244.16 = 71,909.60/x
  3. Step 3: Cross multiply
    121,802.36x = 182,244.16 × 71,909.60
  4. Step 4: Simplify right side
    121,802.36x = 13,105,104,647.94
  5. Step 5: Solve for x
    x = 13,105,104,647.94/121,802.36
  6. Step 6: Final answer
    x = 107,593.19

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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.