Home / 121,271.40-181,907.10-38,165.40

Finding the Fourth Proportional to 121,271.40, 181,907.10 and 38,165.40

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Solution

The fourth proportional to 121,271.40, 181,907.10 and 38,165.40 is: 57,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,271.40 : 181,907.10 = 38,165.40 : x
  2. Step 2: Convert to fraction form
    121,271.40/181,907.10 = 38,165.40/x
  3. Step 3: Cross multiply
    121,271.40x = 181,907.10 × 38,165.40
  4. Step 4: Simplify right side
    121,271.40x = 6,942,557,234.34
  5. Step 5: Solve for x
    x = 6,942,557,234.34/121,271.40
  6. Step 6: Final answer
    x = 57,248.10

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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.