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Finding the Fourth Proportional to 118,281.71, 163,223.07 and 67,289.65

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Solution

The fourth proportional to 118,281.71, 163,223.07 and 67,289.65 is: 92,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,281.71 : 163,223.07 = 67,289.65 : x
  2. Step 2: Convert to fraction form
    118,281.71/163,223.07 = 67,289.65/x
  3. Step 3: Cross multiply
    118,281.71x = 163,223.07 × 67,289.65
  4. Step 4: Simplify right side
    118,281.71x = 10,983,223,252.23
  5. Step 5: Solve for x
    x = 10,983,223,252.23/118,281.71
  6. Step 6: Final answer
    x = 92,856.48

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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.