Home / 114,939.36-158,615.28-64,638.72

Finding the Fourth Proportional to 114,939.36, 158,615.28 and 64,638.72

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Solution

The fourth proportional to 114,939.36, 158,615.28 and 64,638.72 is: 89,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,939.36 : 158,615.28 = 64,638.72 : x
  2. Step 2: Convert to fraction form
    114,939.36/158,615.28 = 64,638.72/x
  3. Step 3: Cross multiply
    114,939.36x = 158,615.28 × 64,638.72
  4. Step 4: Simplify right side
    114,939.36x = 10,252,688,671.64
  5. Step 5: Solve for x
    x = 10,252,688,671.64/114,939.36
  6. Step 6: Final answer
    x = 89,200.85

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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.