Home / 163,815.78-245,723.47-51,505.81

Finding the Fourth Proportional to 163,815.78, 245,723.47 and 51,505.81

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Solution

The fourth proportional to 163,815.78, 245,723.47 and 51,505.81 is: 77,258.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,815.78 : 245,723.47 = 51,505.81 : x
  2. Step 2: Convert to fraction form
    163,815.78/245,723.47 = 51,505.81/x
  3. Step 3: Cross multiply
    163,815.78x = 245,723.47 × 51,505.81
  4. Step 4: Simplify right side
    163,815.78x = 12,656,186,358.36
  5. Step 5: Solve for x
    x = 12,656,186,358.36/163,815.78
  6. Step 6: Final answer
    x = 77,258.65

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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.