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Finding the Fourth Proportional to 117,959.01, 162,785.28 and 64,243.98

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Solution

The fourth proportional to 117,959.01, 162,785.28 and 64,243.98 is: 88,657.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,959.01 : 162,785.28 = 64,243.98 : x
  2. Step 2: Convert to fraction form
    117,959.01/162,785.28 = 64,243.98/x
  3. Step 3: Cross multiply
    117,959.01x = 162,785.28 × 64,243.98
  4. Step 4: Simplify right side
    117,959.01x = 10,457,974,152.16
  5. Step 5: Solve for x
    x = 10,457,974,152.16/117,959.01
  6. Step 6: Final answer
    x = 88,657.70

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