Home / 137,449.04-189,677.28-77,019.44

Finding the Fourth Proportional to 137,449.04, 189,677.28 and 77,019.44

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Solution

The fourth proportional to 137,449.04, 189,677.28 and 77,019.44 is: 106,285.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,449.04 : 189,677.28 = 77,019.44 : x
  2. Step 2: Convert to fraction form
    137,449.04/189,677.28 = 77,019.44/x
  3. Step 3: Cross multiply
    137,449.04x = 189,677.28 × 77,019.44
  4. Step 4: Simplify right side
    137,449.04x = 14,608,837,886.32
  5. Step 5: Solve for x
    x = 14,608,837,886.32/137,449.04
  6. Step 6: Final answer
    x = 106,285.49

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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.