Home / 106,989.28-147,643.40-59,241.60

Finding the Fourth Proportional to 106,989.28, 147,643.40 and 59,241.60

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Solution

The fourth proportional to 106,989.28, 147,643.40 and 59,241.60 is: 81,752.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,989.28 : 147,643.40 = 59,241.60 : x
  2. Step 2: Convert to fraction form
    106,989.28/147,643.40 = 59,241.60/x
  3. Step 3: Cross multiply
    106,989.28x = 147,643.40 × 59,241.60
  4. Step 4: Simplify right side
    106,989.28x = 8,746,631,393.54
  5. Step 5: Solve for x
    x = 8,746,631,393.54/106,989.28
  6. Step 6: Final answer
    x = 81,752.41

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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.