Home / 153,419.12-230,184.19-78,574.51

Finding the Fourth Proportional to 153,419.12, 230,184.19 and 78,574.51

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Solution

The fourth proportional to 153,419.12, 230,184.19 and 78,574.51 is: 117,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,419.12 : 230,184.19 = 78,574.51 : x
  2. Step 2: Convert to fraction form
    153,419.12/230,184.19 = 78,574.51/x
  3. Step 3: Cross multiply
    153,419.12x = 230,184.19 × 78,574.51
  4. Step 4: Simplify right side
    153,419.12x = 18,086,608,788.08
  5. Step 5: Solve for x
    x = 18,086,608,788.08/153,419.12
  6. Step 6: Final answer
    x = 117,890.19

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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.