Home / 132,720.60-183,151.26-76,128.24

Finding the Fourth Proportional to 132,720.60, 183,151.26 and 76,128.24

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Solution

The fourth proportional to 132,720.60, 183,151.26 and 76,128.24 is: 105,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,720.60 : 183,151.26 = 76,128.24 : x
  2. Step 2: Convert to fraction form
    132,720.60/183,151.26 = 76,128.24/x
  3. Step 3: Cross multiply
    132,720.60x = 183,151.26 × 76,128.24
  4. Step 4: Simplify right side
    132,720.60x = 13,942,983,077.58
  5. Step 5: Solve for x
    x = 13,942,983,077.58/132,720.60
  6. Step 6: Final answer
    x = 105,055.15

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1.5x scale

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.