Home / 118,230.75-163,162.35-64,518.72

Finding the Fourth Proportional to 118,230.75, 163,162.35 and 64,518.72

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Solution

The fourth proportional to 118,230.75, 163,162.35 and 64,518.72 is: 89,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.75 : 163,162.35 = 64,518.72 : x
  2. Step 2: Convert to fraction form
    118,230.75/163,162.35 = 64,518.72/x
  3. Step 3: Cross multiply
    118,230.75x = 163,162.35 × 64,518.72
  4. Step 4: Simplify right side
    118,230.75x = 10,527,025,974.19
  5. Step 5: Solve for x
    x = 10,527,025,974.19/118,230.75
  6. Step 6: Final answer
    x = 89,037.97

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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.