Home / 134,868.20-186,104.86-74,434.94

Finding the Fourth Proportional to 134,868.20, 186,104.86 and 74,434.94

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Solution

The fourth proportional to 134,868.20, 186,104.86 and 74,434.94 is: 102,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,868.20 : 186,104.86 = 74,434.94 : x
  2. Step 2: Convert to fraction form
    134,868.20/186,104.86 = 74,434.94/x
  3. Step 3: Cross multiply
    134,868.20x = 186,104.86 × 74,434.94
  4. Step 4: Simplify right side
    134,868.20x = 13,852,703,669.09
  5. Step 5: Solve for x
    x = 13,852,703,669.09/134,868.20
  6. Step 6: Final answer
    x = 102,712.90

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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.