Home / 134,787.70-185,946.84-78,166.24

Finding the Fourth Proportional to 134,787.70, 185,946.84 and 78,166.24

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Solution

The fourth proportional to 134,787.70, 185,946.84 and 78,166.24 is: 107,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,787.70 : 185,946.84 = 78,166.24 : x
  2. Step 2: Convert to fraction form
    134,787.70/185,946.84 = 78,166.24/x
  3. Step 3: Cross multiply
    134,787.70x = 185,946.84 × 78,166.24
  4. Step 4: Simplify right side
    134,787.70x = 14,534,765,322.68
  5. Step 5: Solve for x
    x = 14,534,765,322.68/134,787.70
  6. Step 6: Final answer
    x = 107,834.51

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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.