Home / 148,477.20-204,901.32-81,408.72

Finding the Fourth Proportional to 148,477.20, 204,901.32 and 81,408.72

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Solution

The fourth proportional to 148,477.20, 204,901.32 and 81,408.72 is: 112,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,477.20 : 204,901.32 = 81,408.72 : x
  2. Step 2: Convert to fraction form
    148,477.20/204,901.32 = 81,408.72/x
  3. Step 3: Cross multiply
    148,477.20x = 204,901.32 × 81,408.72
  4. Step 4: Simplify right side
    148,477.20x = 16,680,754,187.51
  5. Step 5: Solve for x
    x = 16,680,754,187.51/148,477.20
  6. Step 6: Final answer
    x = 112,345.56

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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.