Home / 118,575.63-163,636.79-64,864.17

Finding the Fourth Proportional to 118,575.63, 163,636.79 and 64,864.17

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Solution

The fourth proportional to 118,575.63, 163,636.79 and 64,864.17 is: 89,513.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,575.63 : 163,636.79 = 64,864.17 : x
  2. Step 2: Convert to fraction form
    118,575.63/163,636.79 = 64,864.17/x
  3. Step 3: Cross multiply
    118,575.63x = 163,636.79 × 64,864.17
  4. Step 4: Simplify right side
    118,575.63x = 10,614,164,240.49
  5. Step 5: Solve for x
    x = 10,614,164,240.49/118,575.63
  6. Step 6: Final answer
    x = 89,513.88

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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.