Home / 139,151.04-192,027.36-75,488.64

Finding the Fourth Proportional to 139,151.04, 192,027.36 and 75,488.64

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Solution

The fourth proportional to 139,151.04, 192,027.36 and 75,488.64 is: 104,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,151.04 : 192,027.36 = 75,488.64 : x
  2. Step 2: Convert to fraction form
    139,151.04/192,027.36 = 75,488.64/x
  3. Step 3: Cross multiply
    139,151.04x = 192,027.36 × 75,488.64
  4. Step 4: Simplify right side
    139,151.04x = 14,495,884,249.19
  5. Step 5: Solve for x
    x = 14,495,884,249.19/139,151.04
  6. Step 6: Final answer
    x = 104,173.74

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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.