Home / 121,290.13-181,926.66-45,374.19

Finding the Fourth Proportional to 121,290.13, 181,926.66 and 45,374.19

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Solution

The fourth proportional to 121,290.13, 181,926.66 and 45,374.19 is: 68,058.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,290.13 : 181,926.66 = 45,374.19 : x
  2. Step 2: Convert to fraction form
    121,290.13/181,926.66 = 45,374.19/x
  3. Step 3: Cross multiply
    121,290.13x = 181,926.66 × 45,374.19
  4. Step 4: Simplify right side
    121,290.13x = 8,254,773,927.27
  5. Step 5: Solve for x
    x = 8,254,773,927.27/121,290.13
  6. Step 6: Final answer
    x = 68,058.08

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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.