Home / 121,187.47-181,703.09-58,006.05

Finding the Fourth Proportional to 121,187.47, 181,703.09 and 58,006.05

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Solution

The fourth proportional to 121,187.47, 181,703.09 and 58,006.05 is: 86,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,187.47 : 181,703.09 = 58,006.05 : x
  2. Step 2: Convert to fraction form
    121,187.47/181,703.09 = 58,006.05/x
  3. Step 3: Cross multiply
    121,187.47x = 181,703.09 × 58,006.05
  4. Step 4: Simplify right side
    121,187.47x = 10,539,878,523.69
  5. Step 5: Solve for x
    x = 10,539,878,523.69/121,187.47
  6. Step 6: Final answer
    x = 86,971.69

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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.