Home / 117,747.12-162,491.80-64,032.72

Finding the Fourth Proportional to 117,747.12, 162,491.80 and 64,032.72

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Solution

The fourth proportional to 117,747.12, 162,491.80 and 64,032.72 is: 88,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,747.12 : 162,491.80 = 64,032.72 : x
  2. Step 2: Convert to fraction form
    117,747.12/162,491.80 = 64,032.72/x
  3. Step 3: Cross multiply
    117,747.12x = 162,491.80 × 64,032.72
  4. Step 4: Simplify right side
    117,747.12x = 10,404,791,931.70
  5. Step 5: Solve for x
    x = 10,404,791,931.70/117,747.12
  6. Step 6: Final answer
    x = 88,365.57

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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.