Home / 163,140.43-225,230.31-102,762.83

Finding the Fourth Proportional to 163,140.43, 225,230.31 and 102,762.83

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Solution

The fourth proportional to 163,140.43, 225,230.31 and 102,762.83 is: 141,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,140.43 : 225,230.31 = 102,762.83 : x
  2. Step 2: Convert to fraction form
    163,140.43/225,230.31 = 102,762.83/x
  3. Step 3: Cross multiply
    163,140.43x = 225,230.31 × 102,762.83
  4. Step 4: Simplify right side
    163,140.43x = 23,145,302,931.23
  5. Step 5: Solve for x
    x = 23,145,302,931.23/163,140.43
  6. Step 6: Final answer
    x = 141,873.49

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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.