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Finding the Fourth Proportional to 139,277.24, 192,130.08 and 85,574.24

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Solution

The fourth proportional to 139,277.24, 192,130.08 and 85,574.24 is: 118,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,277.24 : 192,130.08 = 85,574.24 : x
  2. Step 2: Convert to fraction form
    139,277.24/192,130.08 = 85,574.24/x
  3. Step 3: Cross multiply
    139,277.24x = 192,130.08 × 85,574.24
  4. Step 4: Simplify right side
    139,277.24x = 16,441,385,577.14
  5. Step 5: Solve for x
    x = 16,441,385,577.14/139,277.24
  6. Step 6: Final answer
    x = 118,047.90

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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.