Home / 103,689.12-155,284.51-59,180.93

Finding the Fourth Proportional to 103,689.12, 155,284.51 and 59,180.93

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Solution

The fourth proportional to 103,689.12, 155,284.51 and 59,180.93 is: 88,629.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.12 : 155,284.51 = 59,180.93 : x
  2. Step 2: Convert to fraction form
    103,689.12/155,284.51 = 59,180.93/x
  3. Step 3: Cross multiply
    103,689.12x = 155,284.51 × 59,180.93
  4. Step 4: Simplify right side
    103,689.12x = 9,189,881,716.39
  5. Step 5: Solve for x
    x = 9,189,881,716.39/103,689.12
  6. Step 6: Final answer
    x = 88,629.18

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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.