Home / 140,943.02-194,499.96-77,280.68

Finding the Fourth Proportional to 140,943.02, 194,499.96 and 77,280.68

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Solution

The fourth proportional to 140,943.02, 194,499.96 and 77,280.68 is: 106,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,943.02 : 194,499.96 = 77,280.68 : x
  2. Step 2: Convert to fraction form
    140,943.02/194,499.96 = 77,280.68/x
  3. Step 3: Cross multiply
    140,943.02x = 194,499.96 × 77,280.68
  4. Step 4: Simplify right side
    140,943.02x = 15,031,089,168.77
  5. Step 5: Solve for x
    x = 15,031,089,168.77/140,943.02
  6. Step 6: Final answer
    x = 106,646.57

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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.