Home / 194,921.60-292,180.80-105,987.20

Finding the Fourth Proportional to 194,921.60, 292,180.80 and 105,987.20

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Solution

The fourth proportional to 194,921.60, 292,180.80 and 105,987.20 is: 158,871.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,921.60 : 292,180.80 = 105,987.20 : x
  2. Step 2: Convert to fraction form
    194,921.60/292,180.80 = 105,987.20/x
  3. Step 3: Cross multiply
    194,921.60x = 292,180.80 × 105,987.20
  4. Step 4: Simplify right side
    194,921.60x = 30,967,424,885.76
  5. Step 5: Solve for x
    x = 30,967,424,885.76/194,921.60
  6. Step 6: Final answer
    x = 158,871.18

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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.