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Finding the Fourth Proportional to 155,866.28, 215,100.42 and 88,802.60

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Solution

The fourth proportional to 155,866.28, 215,100.42 and 88,802.60 is: 122,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,866.28 : 215,100.42 = 88,802.60 : x
  2. Step 2: Convert to fraction form
    155,866.28/215,100.42 = 88,802.60/x
  3. Step 3: Cross multiply
    155,866.28x = 215,100.42 × 88,802.60
  4. Step 4: Simplify right side
    155,866.28x = 19,101,476,557.09
  5. Step 5: Solve for x
    x = 19,101,476,557.09/155,866.28
  6. Step 6: Final answer
    x = 122,550.41

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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.