Home / 118,703.05-163,809.66-64,255.25

Finding the Fourth Proportional to 118,703.05, 163,809.66 and 64,255.25

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Solution

The fourth proportional to 118,703.05, 163,809.66 and 64,255.25 is: 88,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703.05 : 163,809.66 = 64,255.25 : x
  2. Step 2: Convert to fraction form
    118,703.05/163,809.66 = 64,255.25/x
  3. Step 3: Cross multiply
    118,703.05x = 163,809.66 × 64,255.25
  4. Step 4: Simplify right side
    118,703.05x = 10,525,630,655.72
  5. Step 5: Solve for x
    x = 10,525,630,655.72/118,703.05
  6. Step 6: Final answer
    x = 88,671.95

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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.