Home / 121,583.04-182,385-42,690.48

Finding the Fourth Proportional to 121,583.04, 182,385 and 42,690.48

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Solution

The fourth proportional to 121,583.04, 182,385 and 42,690.48 is: 64,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,583.04 : 182,385 = 42,690.48 : x
  2. Step 2: Convert to fraction form
    121,583.04/182,385 = 42,690.48/x
  3. Step 3: Cross multiply
    121,583.04x = 182,385 × 42,690.48
  4. Step 4: Simplify right side
    121,583.04x = 7,786,103,194.80
  5. Step 5: Solve for x
    x = 7,786,103,194.80/121,583.04
  6. Step 6: Final answer
    x = 64,039.39

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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.