Home / 148,156.84-204,454.87-80,172.32

Finding the Fourth Proportional to 148,156.84, 204,454.87 and 80,172.32

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Solution

The fourth proportional to 148,156.84, 204,454.87 and 80,172.32 is: 110,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,156.84 : 204,454.87 = 80,172.32 : x
  2. Step 2: Convert to fraction form
    148,156.84/204,454.87 = 80,172.32/x
  3. Step 3: Cross multiply
    148,156.84x = 204,454.87 × 80,172.32
  4. Step 4: Simplify right side
    148,156.84x = 16,391,621,263.20
  5. Step 5: Solve for x
    x = 16,391,621,263.20/148,156.84
  6. Step 6: Final answer
    x = 110,636.95

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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.