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Finding the Fourth Proportional to 158,866.74, 219,237.62 and 87,248.25

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Solution

The fourth proportional to 158,866.74, 219,237.62 and 87,248.25 is: 120,403.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,866.74 : 219,237.62 = 87,248.25 : x
  2. Step 2: Convert to fraction form
    158,866.74/219,237.62 = 87,248.25/x
  3. Step 3: Cross multiply
    158,866.74x = 219,237.62 × 87,248.25
  4. Step 4: Simplify right side
    158,866.74x = 19,128,098,242.92
  5. Step 5: Solve for x
    x = 19,128,098,242.92/158,866.74
  6. Step 6: Final answer
    x = 120,403.42

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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.