Home / 120,849.40-181,274.10-103,353.40

Finding the Fourth Proportional to 120,849.40, 181,274.10 and 103,353.40

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Solution

The fourth proportional to 120,849.40, 181,274.10 and 103,353.40 is: 155,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,849.40 : 181,274.10 = 103,353.40 : x
  2. Step 2: Convert to fraction form
    120,849.40/181,274.10 = 103,353.40/x
  3. Step 3: Cross multiply
    120,849.40x = 181,274.10 × 103,353.40
  4. Step 4: Simplify right side
    120,849.40x = 18,735,294,566.94
  5. Step 5: Solve for x
    x = 18,735,294,566.94/120,849.40
  6. Step 6: Final answer
    x = 155,030.10

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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.