Home / 106,989.45-147,643.63-59,241.77

Finding the Fourth Proportional to 106,989.45, 147,643.63 and 59,241.77

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Solution

The fourth proportional to 106,989.45, 147,643.63 and 59,241.77 is: 81,752.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,989.45 : 147,643.63 = 59,241.77 : x
  2. Step 2: Convert to fraction form
    106,989.45/147,643.63 = 59,241.77/x
  3. Step 3: Cross multiply
    106,989.45x = 147,643.63 × 59,241.77
  4. Step 4: Simplify right side
    106,989.45x = 8,746,668,936.00
  5. Step 5: Solve for x
    x = 8,746,668,936.00/106,989.45
  6. Step 6: Final answer
    x = 81,752.63

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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.