Home / 148,748.40-205,275.27-80,765.37

Finding the Fourth Proportional to 148,748.40, 205,275.27 and 80,765.37

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Solution

The fourth proportional to 148,748.40, 205,275.27 and 80,765.37 is: 111,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,748.40 : 205,275.27 = 80,765.37 : x
  2. Step 2: Convert to fraction form
    148,748.40/205,275.27 = 80,765.37/x
  3. Step 3: Cross multiply
    148,748.40x = 205,275.27 × 80,765.37
  4. Step 4: Simplify right side
    148,748.40x = 16,579,133,133.40
  5. Step 5: Solve for x
    x = 16,579,133,133.40/148,748.40
  6. Step 6: Final answer
    x = 111,457.56

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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.