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Finding the Fourth Proportional to 151,362.59, 208,880.61 and 83,379.77

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Solution

The fourth proportional to 151,362.59, 208,880.61 and 83,379.77 is: 115,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,362.59 : 208,880.61 = 83,379.77 : x
  2. Step 2: Convert to fraction form
    151,362.59/208,880.61 = 83,379.77/x
  3. Step 3: Cross multiply
    151,362.59x = 208,880.61 × 83,379.77
  4. Step 4: Simplify right side
    151,362.59x = 17,416,417,219.26
  5. Step 5: Solve for x
    x = 17,416,417,219.26/151,362.59
  6. Step 6: Final answer
    x = 115,064.21

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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.