Home / 140,302.60-193,621.74-76,641.44

Finding the Fourth Proportional to 140,302.60, 193,621.74 and 76,641.44

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Solution

The fourth proportional to 140,302.60, 193,621.74 and 76,641.44 is: 105,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,302.60 : 193,621.74 = 76,641.44 : x
  2. Step 2: Convert to fraction form
    140,302.60/193,621.74 = 76,641.44/x
  3. Step 3: Cross multiply
    140,302.60x = 193,621.74 × 76,641.44
  4. Step 4: Simplify right side
    140,302.60x = 14,839,448,968.91
  5. Step 5: Solve for x
    x = 14,839,448,968.91/140,302.60
  6. Step 6: Final answer
    x = 105,767.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.