Home / 118,502.36-163,531.40-64,786.12

Finding the Fourth Proportional to 118,502.36, 163,531.40 and 64,786.12

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Solution

The fourth proportional to 118,502.36, 163,531.40 and 64,786.12 is: 89,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,502.36 : 163,531.40 = 64,786.12 : x
  2. Step 2: Convert to fraction form
    118,502.36/163,531.40 = 64,786.12/x
  3. Step 3: Cross multiply
    118,502.36x = 163,531.40 × 64,786.12
  4. Step 4: Simplify right side
    118,502.36x = 10,594,564,904.17
  5. Step 5: Solve for x
    x = 10,594,564,904.17/118,502.36
  6. Step 6: Final answer
    x = 89,403.83

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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.