Home / 101,511.35-140,086.89-56,193.51

Finding the Fourth Proportional to 101,511.35, 140,086.89 and 56,193.51

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Solution

The fourth proportional to 101,511.35, 140,086.89 and 56,193.51 is: 77,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.35 : 140,086.89 = 56,193.51 : x
  2. Step 2: Convert to fraction form
    101,511.35/140,086.89 = 56,193.51/x
  3. Step 3: Cross multiply
    101,511.35x = 140,086.89 × 56,193.51
  4. Step 4: Simplify right side
    101,511.35x = 7,871,974,054.08
  5. Step 5: Solve for x
    x = 7,871,974,054.08/101,511.35
  6. Step 6: Final answer
    x = 77,547.73

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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.