Home / 105,423.74-158,135.40-34,346.28

Finding the Fourth Proportional to 105,423.74, 158,135.40 and 34,346.28

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Solution

The fourth proportional to 105,423.74, 158,135.40 and 34,346.28 is: 51,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,423.74 : 158,135.40 = 34,346.28 : x
  2. Step 2: Convert to fraction form
    105,423.74/158,135.40 = 34,346.28/x
  3. Step 3: Cross multiply
    105,423.74x = 158,135.40 × 34,346.28
  4. Step 4: Simplify right side
    105,423.74x = 5,431,362,726.31
  5. Step 5: Solve for x
    x = 5,431,362,726.31/105,423.74
  6. Step 6: Final answer
    x = 51,519.35

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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.