Home / 163,815.35-245,722.84-51,505.40

Finding the Fourth Proportional to 163,815.35, 245,722.84 and 51,505.40

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Solution

The fourth proportional to 163,815.35, 245,722.84 and 51,505.40 is: 77,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,815.35 : 245,722.84 = 51,505.40 : x
  2. Step 2: Convert to fraction form
    163,815.35/245,722.84 = 51,505.40/x
  3. Step 3: Cross multiply
    163,815.35x = 245,722.84 × 51,505.40
  4. Step 4: Simplify right side
    163,815.35x = 12,656,053,648.88
  5. Step 5: Solve for x
    x = 12,656,053,648.88/163,815.35
  6. Step 6: Final answer
    x = 77,258.05

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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.