Home / 112,774.86-155,620.08-65,025.36

Finding the Fourth Proportional to 112,774.86, 155,620.08 and 65,025.36

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Solution

The fourth proportional to 112,774.86, 155,620.08 and 65,025.36 is: 89,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.86 : 155,620.08 = 65,025.36 : x
  2. Step 2: Convert to fraction form
    112,774.86/155,620.08 = 65,025.36/x
  3. Step 3: Cross multiply
    112,774.86x = 155,620.08 × 65,025.36
  4. Step 4: Simplify right side
    112,774.86x = 10,119,251,725.23
  5. Step 5: Solve for x
    x = 10,119,251,725.23/112,774.86
  6. Step 6: Final answer
    x = 89,729.68

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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.