Home / 161,653.12-223,072.48-89,041.78

Finding the Fourth Proportional to 161,653.12, 223,072.48 and 89,041.78

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Solution

The fourth proportional to 161,653.12, 223,072.48 and 89,041.78 is: 122,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,653.12 : 223,072.48 = 89,041.78 : x
  2. Step 2: Convert to fraction form
    161,653.12/223,072.48 = 89,041.78/x
  3. Step 3: Cross multiply
    161,653.12x = 223,072.48 × 89,041.78
  4. Step 4: Simplify right side
    161,653.12x = 19,862,771,078.36
  5. Step 5: Solve for x
    x = 19,862,771,078.36/161,653.12
  6. Step 6: Final answer
    x = 122,872.80

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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.