Home / 121,006.80-181,592.89-42,121.03

Finding the Fourth Proportional to 121,006.80, 181,592.89 and 42,121.03

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Solution

The fourth proportional to 121,006.80, 181,592.89 and 42,121.03 is: 63,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,006.80 : 181,592.89 = 42,121.03 : x
  2. Step 2: Convert to fraction form
    121,006.80/181,592.89 = 42,121.03/x
  3. Step 3: Cross multiply
    121,006.80x = 181,592.89 × 42,121.03
  4. Step 4: Simplify right side
    121,006.80x = 7,648,879,567.48
  5. Step 5: Solve for x
    x = 7,648,879,567.48/121,006.80
  6. Step 6: Final answer
    x = 63,210.33

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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.