Home / 118,473.45-163,493.69-70,725.78

Finding the Fourth Proportional to 118,473.45, 163,493.69 and 70,725.78

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Solution

The fourth proportional to 118,473.45, 163,493.69 and 70,725.78 is: 97,601.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,473.45 : 163,493.69 = 70,725.78 : x
  2. Step 2: Convert to fraction form
    118,473.45/163,493.69 = 70,725.78/x
  3. Step 3: Cross multiply
    118,473.45x = 163,493.69 × 70,725.78
  4. Step 4: Simplify right side
    118,473.45x = 11,563,218,750.33
  5. Step 5: Solve for x
    x = 11,563,218,750.33/118,473.45
  6. Step 6: Final answer
    x = 97,601.77

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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.