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Finding the Fourth Proportional to 163,590.80, 245,386.20 and 113,824.40

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Solution

The fourth proportional to 163,590.80, 245,386.20 and 113,824.40 is: 170,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,590.80 : 245,386.20 = 113,824.40 : x
  2. Step 2: Convert to fraction form
    163,590.80/245,386.20 = 113,824.40/x
  3. Step 3: Cross multiply
    163,590.80x = 245,386.20 × 113,824.40
  4. Step 4: Simplify right side
    163,590.80x = 27,930,936,983.28
  5. Step 5: Solve for x
    x = 27,930,936,983.28/163,590.80
  6. Step 6: Final answer
    x = 170,736.60

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1.5x scale

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.