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Finding the Fourth Proportional to 159,326.95, 238,935.34 and 70,642.48

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Solution

The fourth proportional to 159,326.95, 238,935.34 and 70,642.48 is: 105,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,326.95 : 238,935.34 = 70,642.48 : x
  2. Step 2: Convert to fraction form
    159,326.95/238,935.34 = 70,642.48/x
  3. Step 3: Cross multiply
    159,326.95x = 238,935.34 × 70,642.48
  4. Step 4: Simplify right side
    159,326.95x = 16,878,984,977.24
  5. Step 5: Solve for x
    x = 16,878,984,977.24/159,326.95
  6. Step 6: Final answer
    x = 105,939.30

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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.