Home / 151,617.07-209,249.63-87,957.01

Finding the Fourth Proportional to 151,617.07, 209,249.63 and 87,957.01

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Solution

The fourth proportional to 151,617.07, 209,249.63 and 87,957.01 is: 121,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,617.07 : 209,249.63 = 87,957.01 : x
  2. Step 2: Convert to fraction form
    151,617.07/209,249.63 = 87,957.01/x
  3. Step 3: Cross multiply
    151,617.07x = 209,249.63 × 87,957.01
  4. Step 4: Simplify right side
    151,617.07x = 18,404,971,798.41
  5. Step 5: Solve for x
    x = 18,404,971,798.41/151,617.07
  6. Step 6: Final answer
    x = 121,391.16

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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.