Home / 137,535.28-189,799.37-77,108.47

Finding the Fourth Proportional to 137,535.28, 189,799.37 and 77,108.47

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Solution

The fourth proportional to 137,535.28, 189,799.37 and 77,108.47 is: 106,410.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,535.28 : 189,799.37 = 77,108.47 : x
  2. Step 2: Convert to fraction form
    137,535.28/189,799.37 = 77,108.47/x
  3. Step 3: Cross multiply
    137,535.28x = 189,799.37 × 77,108.47
  4. Step 4: Simplify right side
    137,535.28x = 14,635,139,027.66
  5. Step 5: Solve for x
    x = 14,635,139,027.66/137,535.28
  6. Step 6: Final answer
    x = 106,410.07

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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.