Home / 139,332.48-192,277.98-75,669.72

Finding the Fourth Proportional to 139,332.48, 192,277.98 and 75,669.72

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Solution

The fourth proportional to 139,332.48, 192,277.98 and 75,669.72 is: 104,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,332.48 : 192,277.98 = 75,669.72 : x
  2. Step 2: Convert to fraction form
    139,332.48/192,277.98 = 75,669.72/x
  3. Step 3: Cross multiply
    139,332.48x = 192,277.98 × 75,669.72
  4. Step 4: Simplify right side
    139,332.48x = 14,549,620,908.77
  5. Step 5: Solve for x
    x = 14,549,620,908.77/139,332.48
  6. Step 6: Final answer
    x = 104,423.76

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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.