Home / 132,720.66-183,194.53-90,303.79

Finding the Fourth Proportional to 132,720.66, 183,194.53 and 90,303.79

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Solution

The fourth proportional to 132,720.66, 183,194.53 and 90,303.79 is: 124,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,720.66 : 183,194.53 = 90,303.79 : x
  2. Step 2: Convert to fraction form
    132,720.66/183,194.53 = 90,303.79/x
  3. Step 3: Cross multiply
    132,720.66x = 183,194.53 × 90,303.79
  4. Step 4: Simplify right side
    132,720.66x = 16,543,160,366.27
  5. Step 5: Solve for x
    x = 16,543,160,366.27/132,720.66
  6. Step 6: Final answer
    x = 124,646.46

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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.