Home / 103,645.29-155,218.80-59,137.11

Finding the Fourth Proportional to 103,645.29, 155,218.80 and 59,137.11

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Solution

The fourth proportional to 103,645.29, 155,218.80 and 59,137.11 is: 88,563.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.29 : 155,218.80 = 59,137.11 : x
  2. Step 2: Convert to fraction form
    103,645.29/155,218.80 = 59,137.11/x
  3. Step 3: Cross multiply
    103,645.29x = 155,218.80 × 59,137.11
  4. Step 4: Simplify right side
    103,645.29x = 9,179,191,397.51
  5. Step 5: Solve for x
    x = 9,179,191,397.51/103,645.29
  6. Step 6: Final answer
    x = 88,563.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.