Home / 118,625.28-163,701.44-64,909.60

Finding the Fourth Proportional to 118,625.28, 163,701.44 and 64,909.60

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Solution

The fourth proportional to 118,625.28, 163,701.44 and 64,909.60 is: 89,574.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,625.28 : 163,701.44 = 64,909.60 : x
  2. Step 2: Convert to fraction form
    118,625.28/163,701.44 = 64,909.60/x
  3. Step 3: Cross multiply
    118,625.28x = 163,701.44 × 64,909.60
  4. Step 4: Simplify right side
    118,625.28x = 10,625,794,989.82
  5. Step 5: Solve for x
    x = 10,625,794,989.82/118,625.28
  6. Step 6: Final answer
    x = 89,574.46

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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.