Home / 137,179.22-189,314.70-76,746.27

Finding the Fourth Proportional to 137,179.22, 189,314.70 and 76,746.27

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Solution

The fourth proportional to 137,179.22, 189,314.70 and 76,746.27 is: 105,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179.22 : 189,314.70 = 76,746.27 : x
  2. Step 2: Convert to fraction form
    137,179.22/189,314.70 = 76,746.27/x
  3. Step 3: Cross multiply
    137,179.22x = 189,314.70 × 76,746.27
  4. Step 4: Simplify right side
    137,179.22x = 14,529,197,081.17
  5. Step 5: Solve for x
    x = 14,529,197,081.17/137,179.22
  6. Step 6: Final answer
    x = 105,913.98

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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.