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Finding the Fourth Proportional to 163,980.79, 245,806.75 and 57,281.92

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Solution

The fourth proportional to 163,980.79, 245,806.75 and 57,281.92 is: 85,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,980.79 : 245,806.75 = 57,281.92 : x
  2. Step 2: Convert to fraction form
    163,980.79/245,806.75 = 57,281.92/x
  3. Step 3: Cross multiply
    163,980.79x = 245,806.75 × 57,281.92
  4. Step 4: Simplify right side
    163,980.79x = 14,080,282,588.96
  5. Step 5: Solve for x
    x = 14,080,282,588.96/163,980.79
  6. Step 6: Final answer
    x = 85,865.44

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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.