Home / 118,287.69-163,240.64-64,576.19

Finding the Fourth Proportional to 118,287.69, 163,240.64 and 64,576.19

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Solution

The fourth proportional to 118,287.69, 163,240.64 and 64,576.19 is: 89,117.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,287.69 : 163,240.64 = 64,576.19 : x
  2. Step 2: Convert to fraction form
    118,287.69/163,240.64 = 64,576.19/x
  3. Step 3: Cross multiply
    118,287.69x = 163,240.64 × 64,576.19
  4. Step 4: Simplify right side
    118,287.69x = 10,541,457,445.28
  5. Step 5: Solve for x
    x = 10,541,457,445.28/118,287.69
  6. Step 6: Final answer
    x = 89,117.11

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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.