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Finding the Fourth Proportional to 124,228.80, 186,123.60 and 120,117.60

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Solution

The fourth proportional to 124,228.80, 186,123.60 and 120,117.60 is: 179,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,228.80 : 186,123.60 = 120,117.60 : x
  2. Step 2: Convert to fraction form
    124,228.80/186,123.60 = 120,117.60/x
  3. Step 3: Cross multiply
    124,228.80x = 186,123.60 × 120,117.60
  4. Step 4: Simplify right side
    124,228.80x = 22,356,720,135.36
  5. Step 5: Solve for x
    x = 22,356,720,135.36/124,228.80
  6. Step 6: Final answer
    x = 179,964.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.