Home / 118,212.09-163,132.09-64,496.94

Finding the Fourth Proportional to 118,212.09, 163,132.09 and 64,496.94

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Solution

The fourth proportional to 118,212.09, 163,132.09 and 64,496.94 is: 89,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,212.09 : 163,132.09 = 64,496.94 : x
  2. Step 2: Convert to fraction form
    118,212.09/163,132.09 = 64,496.94/x
  3. Step 3: Cross multiply
    118,212.09x = 163,132.09 × 64,496.94
  4. Step 4: Simplify right side
    118,212.09x = 10,521,520,459.56
  5. Step 5: Solve for x
    x = 10,521,520,459.56/118,212.09
  6. Step 6: Final answer
    x = 89,005.45

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1.5x scale

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.