Home / 118,148.77-163,040.38-64,432.81

Finding the Fourth Proportional to 118,148.77, 163,040.38 and 64,432.81

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Solution

The fourth proportional to 118,148.77, 163,040.38 and 64,432.81 is: 88,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,148.77 : 163,040.38 = 64,432.81 : x
  2. Step 2: Convert to fraction form
    118,148.77/163,040.38 = 64,432.81/x
  3. Step 3: Cross multiply
    118,148.77x = 163,040.38 × 64,432.81
  4. Step 4: Simplify right side
    118,148.77x = 10,505,149,826.87
  5. Step 5: Solve for x
    x = 10,505,149,826.87/118,148.77
  6. Step 6: Final answer
    x = 88,914.59

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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.