Home / 144,118.56-216,309.03-76,707.19

Finding the Fourth Proportional to 144,118.56, 216,309.03 and 76,707.19

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Solution

The fourth proportional to 144,118.56, 216,309.03 and 76,707.19 is: 115,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,118.56 : 216,309.03 = 76,707.19 : x
  2. Step 2: Convert to fraction form
    144,118.56/216,309.03 = 76,707.19/x
  3. Step 3: Cross multiply
    144,118.56x = 216,309.03 × 76,707.19
  4. Step 4: Simplify right side
    144,118.56x = 16,592,458,538.89
  5. Step 5: Solve for x
    x = 16,592,458,538.89/144,118.56
  6. Step 6: Final answer
    x = 115,130.61

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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.