Home / 118,381.25-163,363.44-64,666.50

Finding the Fourth Proportional to 118,381.25, 163,363.44 and 64,666.50

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Solution

The fourth proportional to 118,381.25, 163,363.44 and 64,666.50 is: 89,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,381.25 : 163,363.44 = 64,666.50 : x
  2. Step 2: Convert to fraction form
    118,381.25/163,363.44 = 64,666.50/x
  3. Step 3: Cross multiply
    118,381.25x = 163,363.44 × 64,666.50
  4. Step 4: Simplify right side
    118,381.25x = 10,564,142,262.87
  5. Step 5: Solve for x
    x = 10,564,142,262.87/118,381.25
  6. Step 6: Final answer
    x = 89,238.31

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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.