Home / 138,914.86-191,703.08-75,252.64

Finding the Fourth Proportional to 138,914.86, 191,703.08 and 75,252.64

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Solution

The fourth proportional to 138,914.86, 191,703.08 and 75,252.64 is: 103,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,914.86 : 191,703.08 = 75,252.64 : x
  2. Step 2: Convert to fraction form
    138,914.86/191,703.08 = 75,252.64/x
  3. Step 3: Cross multiply
    138,914.86x = 191,703.08 × 75,252.64
  4. Step 4: Simplify right side
    138,914.86x = 14,426,162,866.13
  5. Step 5: Solve for x
    x = 14,426,162,866.13/138,914.86
  6. Step 6: Final answer
    x = 103,848.95

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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.