Home / 98,941.84-136,557.28-75,028.20

Finding the Fourth Proportional to 98,941.84, 136,557.28 and 75,028.20

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Solution

The fourth proportional to 98,941.84, 136,557.28 and 75,028.20 is: 103,552.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,941.84 : 136,557.28 = 75,028.20 : x
  2. Step 2: Convert to fraction form
    98,941.84/136,557.28 = 75,028.20/x
  3. Step 3: Cross multiply
    98,941.84x = 136,557.28 × 75,028.20
  4. Step 4: Simplify right side
    98,941.84x = 10,245,646,915.30
  5. Step 5: Solve for x
    x = 10,245,646,915.30/98,941.84
  6. Step 6: Final answer
    x = 103,552.22

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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.