Home / 118,306.62-163,266.80-64,595.12

Finding the Fourth Proportional to 118,306.62, 163,266.80 and 64,595.12

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Solution

The fourth proportional to 118,306.62, 163,266.80 and 64,595.12 is: 89,143.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,306.62 : 163,266.80 = 64,595.12 : x
  2. Step 2: Convert to fraction form
    118,306.62/163,266.80 = 64,595.12/x
  3. Step 3: Cross multiply
    118,306.62x = 163,266.80 × 64,595.12
  4. Step 4: Simplify right side
    118,306.62x = 10,546,237,398.71
  5. Step 5: Solve for x
    x = 10,546,237,398.71/118,306.62
  6. Step 6: Final answer
    x = 89,143.26

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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.