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Finding the Fourth Proportional to 163,854.81, 245,877.71 and 69,079.17

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Solution

The fourth proportional to 163,854.81, 245,877.71 and 69,079.17 is: 103,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,854.81 : 245,877.71 = 69,079.17 : x
  2. Step 2: Convert to fraction form
    163,854.81/245,877.71 = 69,079.17/x
  3. Step 3: Cross multiply
    163,854.81x = 245,877.71 × 69,079.17
  4. Step 4: Simplify right side
    163,854.81x = 16,985,028,128.30
  5. Step 5: Solve for x
    x = 16,985,028,128.30/163,854.81
  6. Step 6: Final answer
    x = 103,659.01

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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.