Home / 117,143.60-161,656.26-63,428.18

Finding the Fourth Proportional to 117,143.60, 161,656.26 and 63,428.18

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Solution

The fourth proportional to 117,143.60, 161,656.26 and 63,428.18 is: 87,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,143.60 : 161,656.26 = 63,428.18 : x
  2. Step 2: Convert to fraction form
    117,143.60/161,656.26 = 63,428.18/x
  3. Step 3: Cross multiply
    117,143.60x = 161,656.26 × 63,428.18
  4. Step 4: Simplify right side
    117,143.60x = 10,253,562,357.41
  5. Step 5: Solve for x
    x = 10,253,562,357.41/117,143.60
  6. Step 6: Final answer
    x = 87,529.86

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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.