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Finding the Fourth Proportional to 101,182.68, 139,631.31 and 55,860.71

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Solution

The fourth proportional to 101,182.68, 139,631.31 and 55,860.71 is: 77,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,182.68 : 139,631.31 = 55,860.71 : x
  2. Step 2: Convert to fraction form
    101,182.68/139,631.31 = 55,860.71/x
  3. Step 3: Cross multiply
    101,182.68x = 139,631.31 × 55,860.71
  4. Step 4: Simplify right side
    101,182.68x = 7,799,903,416.67
  5. Step 5: Solve for x
    x = 7,799,903,416.67/101,182.68
  6. Step 6: Final answer
    x = 77,087.34

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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.