Home / 137,295.54-189,445.83-76,868.70

Finding the Fourth Proportional to 137,295.54, 189,445.83 and 76,868.70

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Solution

The fourth proportional to 137,295.54, 189,445.83 and 76,868.70 is: 106,066.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,295.54 : 189,445.83 = 76,868.70 : x
  2. Step 2: Convert to fraction form
    137,295.54/189,445.83 = 76,868.70/x
  3. Step 3: Cross multiply
    137,295.54x = 189,445.83 × 76,868.70
  4. Step 4: Simplify right side
    137,295.54x = 14,562,454,672.52
  5. Step 5: Solve for x
    x = 14,562,454,672.52/137,295.54
  6. Step 6: Final answer
    x = 106,066.48

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1.5x scale

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.