Home / 118,153.76-163,046.44-70,406.04

Finding the Fourth Proportional to 118,153.76, 163,046.44 and 70,406.04

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Solution

The fourth proportional to 118,153.76, 163,046.44 and 70,406.04 is: 97,156.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,153.76 : 163,046.44 = 70,406.04 : x
  2. Step 2: Convert to fraction form
    118,153.76/163,046.44 = 70,406.04/x
  3. Step 3: Cross multiply
    118,153.76x = 163,046.44 × 70,406.04
  4. Step 4: Simplify right side
    118,153.76x = 11,479,454,176.50
  5. Step 5: Solve for x
    x = 11,479,454,176.50/118,153.76
  6. Step 6: Final answer
    x = 97,156.91

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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.