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Finding the Fourth Proportional to 139,880.66, 192,977.52 and 97,463.79

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Solution

The fourth proportional to 139,880.66, 192,977.52 and 97,463.79 is: 134,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,880.66 : 192,977.52 = 97,463.79 : x
  2. Step 2: Convert to fraction form
    139,880.66/192,977.52 = 97,463.79/x
  3. Step 3: Cross multiply
    139,880.66x = 192,977.52 × 97,463.79
  4. Step 4: Simplify right side
    139,880.66x = 18,808,320,484.00
  5. Step 5: Solve for x
    x = 18,808,320,484.00/139,880.66
  6. Step 6: Final answer
    x = 134,459.77

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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.