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Finding the Fourth Proportional to 101,189.84, 139,641.08 and 55,866.84

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Solution

The fourth proportional to 101,189.84, 139,641.08 and 55,866.84 is: 77,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,189.84 : 139,641.08 = 55,866.84 : x
  2. Step 2: Convert to fraction form
    101,189.84/139,641.08 = 55,866.84/x
  3. Step 3: Cross multiply
    101,189.84x = 139,641.08 × 55,866.84
  4. Step 4: Simplify right side
    101,189.84x = 7,801,305,594.45
  5. Step 5: Solve for x
    x = 7,801,305,594.45/101,189.84
  6. Step 6: Final answer
    x = 77,095.74

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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.