Home / 163,669.90-245,614.20-74,877.70

Finding the Fourth Proportional to 163,669.90, 245,614.20 and 74,877.70

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Solution

The fourth proportional to 163,669.90, 245,614.20 and 74,877.70 is: 112,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,669.90 : 245,614.20 = 74,877.70 : x
  2. Step 2: Convert to fraction form
    163,669.90/245,614.20 = 74,877.70/x
  3. Step 3: Cross multiply
    163,669.90x = 245,614.20 × 74,877.70
  4. Step 4: Simplify right side
    163,669.90x = 18,391,026,383.34
  5. Step 5: Solve for x
    x = 18,391,026,383.34/163,669.90
  6. Step 6: Final answer
    x = 112,366.58

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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.