Home / 154,601.98-213,356.86-86,619.52

Finding the Fourth Proportional to 154,601.98, 213,356.86 and 86,619.52

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Solution

The fourth proportional to 154,601.98, 213,356.86 and 86,619.52 is: 119,538.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,601.98 : 213,356.86 = 86,619.52 : x
  2. Step 2: Convert to fraction form
    154,601.98/213,356.86 = 86,619.52/x
  3. Step 3: Cross multiply
    154,601.98x = 213,356.86 × 86,619.52
  4. Step 4: Simplify right side
    154,601.98x = 18,480,868,801.91
  5. Step 5: Solve for x
    x = 18,480,868,801.91/154,601.98
  6. Step 6: Final answer
    x = 119,538.37

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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.