Home / 112,424.88-155,155.20-64,028.86

Finding the Fourth Proportional to 112,424.88, 155,155.20 and 64,028.86

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Solution

The fourth proportional to 112,424.88, 155,155.20 and 64,028.86 is: 88,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.88 : 155,155.20 = 64,028.86 : x
  2. Step 2: Convert to fraction form
    112,424.88/155,155.20 = 64,028.86/x
  3. Step 3: Cross multiply
    112,424.88x = 155,155.20 × 64,028.86
  4. Step 4: Simplify right side
    112,424.88x = 9,934,410,579.07
  5. Step 5: Solve for x
    x = 9,934,410,579.07/112,424.88
  6. Step 6: Final answer
    x = 88,364.88

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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.