Home / 112,664.18-155,484.09-64,920.62

Finding the Fourth Proportional to 112,664.18, 155,484.09 and 64,920.62

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Solution

The fourth proportional to 112,664.18, 155,484.09 and 64,920.62 is: 89,594.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,664.18 : 155,484.09 = 64,920.62 : x
  2. Step 2: Convert to fraction form
    112,664.18/155,484.09 = 64,920.62/x
  3. Step 3: Cross multiply
    112,664.18x = 155,484.09 × 64,920.62
  4. Step 4: Simplify right side
    112,664.18x = 10,094,122,745.52
  5. Step 5: Solve for x
    x = 10,094,122,745.52/112,664.18
  6. Step 6: Final answer
    x = 89,594.79

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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.