Home / 117,123.16-161,628.84-63,406.80

Finding the Fourth Proportional to 117,123.16, 161,628.84 and 63,406.80

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Solution

The fourth proportional to 117,123.16, 161,628.84 and 63,406.80 is: 87,500.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,123.16 : 161,628.84 = 63,406.80 : x
  2. Step 2: Convert to fraction form
    117,123.16/161,628.84 = 63,406.80/x
  3. Step 3: Cross multiply
    117,123.16x = 161,628.84 × 63,406.80
  4. Step 4: Simplify right side
    117,123.16x = 10,248,367,532.11
  5. Step 5: Solve for x
    x = 10,248,367,532.11/117,123.16
  6. Step 6: Final answer
    x = 87,500.78

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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.