Home / 154,164.11-212,726.57-86,184.86

Finding the Fourth Proportional to 154,164.11, 212,726.57 and 86,184.86

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Solution

The fourth proportional to 154,164.11, 212,726.57 and 86,184.86 is: 118,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,164.11 : 212,726.57 = 86,184.86 : x
  2. Step 2: Convert to fraction form
    154,164.11/212,726.57 = 86,184.86/x
  3. Step 3: Cross multiply
    154,164.11x = 212,726.57 × 86,184.86
  4. Step 4: Simplify right side
    154,164.11x = 18,333,808,159.17
  5. Step 5: Solve for x
    x = 18,333,808,159.17/154,164.11
  6. Step 6: Final answer
    x = 118,923.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.