Home / 106,813.35-160,079.86-78,601.32

Finding the Fourth Proportional to 106,813.35, 160,079.86 and 78,601.32

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Solution

The fourth proportional to 106,813.35, 160,079.86 and 78,601.32 is: 117,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,813.35 : 160,079.86 = 78,601.32 : x
  2. Step 2: Convert to fraction form
    106,813.35/160,079.86 = 78,601.32/x
  3. Step 3: Cross multiply
    106,813.35x = 160,079.86 × 78,601.32
  4. Step 4: Simplify right side
    106,813.35x = 12,582,488,399.67
  5. Step 5: Solve for x
    x = 12,582,488,399.67/106,813.35
  6. Step 6: Final answer
    x = 117,798.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.