Home / 118,385.34-163,371.15-64,669.74

Finding the Fourth Proportional to 118,385.34, 163,371.15 and 64,669.74

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Solution

The fourth proportional to 118,385.34, 163,371.15 and 64,669.74 is: 89,243.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,385.34 : 163,371.15 = 64,669.74 : x
  2. Step 2: Convert to fraction form
    118,385.34/163,371.15 = 64,669.74/x
  3. Step 3: Cross multiply
    118,385.34x = 163,371.15 × 64,669.74
  4. Step 4: Simplify right side
    118,385.34x = 10,565,169,794.00
  5. Step 5: Solve for x
    x = 10,565,169,794.00/118,385.34
  6. Step 6: Final answer
    x = 89,243.90

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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.