Home / 117,476.47-162,117.70-63,761.50

Finding the Fourth Proportional to 117,476.47, 162,117.70 and 63,761.50

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Solution

The fourth proportional to 117,476.47, 162,117.70 and 63,761.50 is: 87,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,476.47 : 162,117.70 = 63,761.50 : x
  2. Step 2: Convert to fraction form
    117,476.47/162,117.70 = 63,761.50/x
  3. Step 3: Cross multiply
    117,476.47x = 162,117.70 × 63,761.50
  4. Step 4: Simplify right side
    117,476.47x = 10,336,868,434.42
  5. Step 5: Solve for x
    x = 10,336,868,434.42/117,476.47
  6. Step 6: Final answer
    x = 87,990.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.