Home / 153,331.92-211,629.51-89,685.36

Finding the Fourth Proportional to 153,331.92, 211,629.51 and 89,685.36

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Solution

The fourth proportional to 153,331.92, 211,629.51 and 89,685.36 is: 123,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,331.92 : 211,629.51 = 89,685.36 : x
  2. Step 2: Convert to fraction form
    153,331.92/211,629.51 = 89,685.36/x
  3. Step 3: Cross multiply
    153,331.92x = 211,629.51 × 89,685.36
  4. Step 4: Simplify right side
    153,331.92x = 18,980,068,790.97
  5. Step 5: Solve for x
    x = 18,980,068,790.97/153,331.92
  6. Step 6: Final answer
    x = 123,784.20

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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.