Home / 118,387.91-163,372.64-64,673.16

Finding the Fourth Proportional to 118,387.91, 163,372.64 and 64,673.16

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Solution

The fourth proportional to 118,387.91, 163,372.64 and 64,673.16 is: 89,247.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,387.91 : 163,372.64 = 64,673.16 : x
  2. Step 2: Convert to fraction form
    118,387.91/163,372.64 = 64,673.16/x
  3. Step 3: Cross multiply
    118,387.91x = 163,372.64 × 64,673.16
  4. Step 4: Simplify right side
    118,387.91x = 10,565,824,562.98
  5. Step 5: Solve for x
    x = 10,565,824,562.98/118,387.91
  6. Step 6: Final answer
    x = 89,247.50

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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.