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Finding the Fourth Proportional to 101,125.67, 139,552.47 and 55,804.05

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Solution

The fourth proportional to 101,125.67, 139,552.47 and 55,804.05 is: 77,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,125.67 : 139,552.47 = 55,804.05 : x
  2. Step 2: Convert to fraction form
    101,125.67/139,552.47 = 55,804.05/x
  3. Step 3: Cross multiply
    101,125.67x = 139,552.47 × 55,804.05
  4. Step 4: Simplify right side
    101,125.67x = 7,787,593,013.50
  5. Step 5: Solve for x
    x = 7,787,593,013.50/101,125.67
  6. Step 6: Final answer
    x = 77,009.07

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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.