Home / 137,179.08-189,314.49-76,746.12

Finding the Fourth Proportional to 137,179.08, 189,314.49 and 76,746.12

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Solution

The fourth proportional to 137,179.08, 189,314.49 and 76,746.12 is: 105,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179.08 : 189,314.49 = 76,746.12 : x
  2. Step 2: Convert to fraction form
    137,179.08/189,314.49 = 76,746.12/x
  3. Step 3: Cross multiply
    137,179.08x = 189,314.49 × 76,746.12
  4. Step 4: Simplify right side
    137,179.08x = 14,529,152,567.28
  5. Step 5: Solve for x
    x = 14,529,152,567.28/137,179.08
  6. Step 6: Final answer
    x = 105,913.76

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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.