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Finding the Fourth Proportional to 101,125.29, 139,551.95 and 55,803.66

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Solution

The fourth proportional to 101,125.29, 139,551.95 and 55,803.66 is: 77,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,125.29 : 139,551.95 = 55,803.66 : x
  2. Step 2: Convert to fraction form
    101,125.29/139,551.95 = 55,803.66/x
  3. Step 3: Cross multiply
    101,125.29x = 139,551.95 × 55,803.66
  4. Step 4: Simplify right side
    101,125.29x = 7,787,509,291.12
  5. Step 5: Solve for x
    x = 7,787,509,291.12/101,125.29
  6. Step 6: Final answer
    x = 77,008.52

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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.