Home / 118,281.21-163,222.38-67,289.15

Finding the Fourth Proportional to 118,281.21, 163,222.38 and 67,289.15

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Solution

The fourth proportional to 118,281.21, 163,222.38 and 67,289.15 is: 92,855.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,281.21 : 163,222.38 = 67,289.15 : x
  2. Step 2: Convert to fraction form
    118,281.21/163,222.38 = 67,289.15/x
  3. Step 3: Cross multiply
    118,281.21x = 163,222.38 × 67,289.15
  4. Step 4: Simplify right side
    118,281.21x = 10,983,095,211.18
  5. Step 5: Solve for x
    x = 10,983,095,211.18/118,281.21
  6. Step 6: Final answer
    x = 92,855.79

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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.