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Finding the Fourth Proportional to 101,124.68, 139,551.89 and 55,802.66

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Solution

The fourth proportional to 101,124.68, 139,551.89 and 55,802.66 is: 77,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,124.68 : 139,551.89 = 55,802.66 : x
  2. Step 2: Convert to fraction form
    101,124.68/139,551.89 = 55,802.66/x
  3. Step 3: Cross multiply
    101,124.68x = 139,551.89 × 55,802.66
  4. Step 4: Simplify right side
    101,124.68x = 7,787,365,693.25
  5. Step 5: Solve for x
    x = 7,787,365,693.25/101,124.68
  6. Step 6: Final answer
    x = 77,007.57

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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.