Home / 121,188.13-181,865.24-42,302.37

Finding the Fourth Proportional to 121,188.13, 181,865.24 and 42,302.37

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Solution

The fourth proportional to 121,188.13, 181,865.24 and 42,302.37 is: 63,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,188.13 : 181,865.24 = 42,302.37 : x
  2. Step 2: Convert to fraction form
    121,188.13/181,865.24 = 42,302.37/x
  3. Step 3: Cross multiply
    121,188.13x = 181,865.24 × 42,302.37
  4. Step 4: Simplify right side
    121,188.13x = 7,693,330,672.62
  5. Step 5: Solve for x
    x = 7,693,330,672.62/121,188.13
  6. Step 6: Final answer
    x = 63,482.54

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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.