Home / 118,530.48-163,572.12-67,541.76

Finding the Fourth Proportional to 118,530.48, 163,572.12 and 67,541.76

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Solution

The fourth proportional to 118,530.48, 163,572.12 and 67,541.76 is: 93,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,530.48 : 163,572.12 = 67,541.76 : x
  2. Step 2: Convert to fraction form
    118,530.48/163,572.12 = 67,541.76/x
  3. Step 3: Cross multiply
    118,530.48x = 163,572.12 × 67,541.76
  4. Step 4: Simplify right side
    118,530.48x = 11,047,948,871.73
  5. Step 5: Solve for x
    x = 11,047,948,871.73/118,530.48
  6. Step 6: Final answer
    x = 93,207.66

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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.