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Finding the Fourth Proportional to 163,970.52, 245,748.52 and 87,879.93

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Solution

The fourth proportional to 163,970.52, 245,748.52 and 87,879.93 is: 131,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,970.52 : 245,748.52 = 87,879.93 : x
  2. Step 2: Convert to fraction form
    163,970.52/245,748.52 = 87,879.93/x
  3. Step 3: Cross multiply
    163,970.52x = 245,748.52 × 87,879.93
  4. Step 4: Simplify right side
    163,970.52x = 21,596,362,735.20
  5. Step 5: Solve for x
    x = 21,596,362,735.20/163,970.52
  6. Step 6: Final answer
    x = 131,708.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.