Home / 163,979.60-245,969.40-147,909.20

Finding the Fourth Proportional to 163,979.60, 245,969.40 and 147,909.20

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Solution

The fourth proportional to 163,979.60, 245,969.40 and 147,909.20 is: 221,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,979.60 : 245,969.40 = 147,909.20 : x
  2. Step 2: Convert to fraction form
    163,979.60/245,969.40 = 147,909.20/x
  3. Step 3: Cross multiply
    163,979.60x = 245,969.40 × 147,909.20
  4. Step 4: Simplify right side
    163,979.60x = 36,381,137,178.48
  5. Step 5: Solve for x
    x = 36,381,137,178.48/163,979.60
  6. Step 6: Final answer
    x = 221,863.80

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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.