Home / 139,251.12-192,166.56-75,588.90

Finding the Fourth Proportional to 139,251.12, 192,166.56 and 75,588.90

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Solution

The fourth proportional to 139,251.12, 192,166.56 and 75,588.90 is: 104,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,251.12 : 192,166.56 = 75,588.90 : x
  2. Step 2: Convert to fraction form
    139,251.12/192,166.56 = 75,588.90/x
  3. Step 3: Cross multiply
    139,251.12x = 192,166.56 × 75,588.90
  4. Step 4: Simplify right side
    139,251.12x = 14,525,658,887.18
  5. Step 5: Solve for x
    x = 14,525,658,887.18/139,251.12
  6. Step 6: Final answer
    x = 104,312.69

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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.