Home / 118,265.40-163,205.08-64,549.95

Finding the Fourth Proportional to 118,265.40, 163,205.08 and 64,549.95

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Solution

The fourth proportional to 118,265.40, 163,205.08 and 64,549.95 is: 89,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,265.40 : 163,205.08 = 64,549.95 : x
  2. Step 2: Convert to fraction form
    118,265.40/163,205.08 = 64,549.95/x
  3. Step 3: Cross multiply
    118,265.40x = 163,205.08 × 64,549.95
  4. Step 4: Simplify right side
    118,265.40x = 10,534,879,753.75
  5. Step 5: Solve for x
    x = 10,534,879,753.75/118,265.40
  6. Step 6: Final answer
    x = 89,078.29

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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.