Home / 106,985.84-147,642-59,239.08

Finding the Fourth Proportional to 106,985.84, 147,642 and 59,239.08

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Solution

The fourth proportional to 106,985.84, 147,642 and 59,239.08 is: 81,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,985.84 : 147,642 = 59,239.08 : x
  2. Step 2: Convert to fraction form
    106,985.84/147,642 = 59,239.08/x
  3. Step 3: Cross multiply
    106,985.84x = 147,642 × 59,239.08
  4. Step 4: Simplify right side
    106,985.84x = 8,746,176,249.36
  5. Step 5: Solve for x
    x = 8,746,176,249.36/106,985.84
  6. Step 6: Final answer
    x = 81,750.78

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1.5x scale

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.