Home / 154,488.19-231,776.03-91,364.35

Finding the Fourth Proportional to 154,488.19, 231,776.03 and 91,364.35

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Solution

The fourth proportional to 154,488.19, 231,776.03 and 91,364.35 is: 137,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,488.19 : 231,776.03 = 91,364.35 : x
  2. Step 2: Convert to fraction form
    154,488.19/231,776.03 = 91,364.35/x
  3. Step 3: Cross multiply
    154,488.19x = 231,776.03 × 91,364.35
  4. Step 4: Simplify right side
    154,488.19x = 21,176,066,326.53
  5. Step 5: Solve for x
    x = 21,176,066,326.53/154,488.19
  6. Step 6: Final answer
    x = 137,072.40

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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.