Home / 121,267.40-181,901.10-38,161.40

Finding the Fourth Proportional to 121,267.40, 181,901.10 and 38,161.40

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Solution

The fourth proportional to 121,267.40, 181,901.10 and 38,161.40 is: 57,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,267.40 : 181,901.10 = 38,161.40 : x
  2. Step 2: Convert to fraction form
    121,267.40/181,901.10 = 38,161.40/x
  3. Step 3: Cross multiply
    121,267.40x = 181,901.10 × 38,161.40
  4. Step 4: Simplify right side
    121,267.40x = 6,941,600,637.54
  5. Step 5: Solve for x
    x = 6,941,600,637.54/121,267.40
  6. Step 6: Final answer
    x = 57,242.10

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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.