Home / 113,288.44-156,293.80-64,864.49

Finding the Fourth Proportional to 113,288.44, 156,293.80 and 64,864.49

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Solution

The fourth proportional to 113,288.44, 156,293.80 and 64,864.49 is: 89,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,288.44 : 156,293.80 = 64,864.49 : x
  2. Step 2: Convert to fraction form
    113,288.44/156,293.80 = 64,864.49/x
  3. Step 3: Cross multiply
    113,288.44x = 156,293.80 × 64,864.49
  4. Step 4: Simplify right side
    113,288.44x = 10,137,916,683.53
  5. Step 5: Solve for x
    x = 10,137,916,683.53/113,288.44
  6. Step 6: Final answer
    x = 89,487.65

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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.