Home / 139,389.69-192,357.27-75,726.93

Finding the Fourth Proportional to 139,389.69, 192,357.27 and 75,726.93

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Solution

The fourth proportional to 139,389.69, 192,357.27 and 75,726.93 is: 104,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,389.69 : 192,357.27 = 75,726.93 : x
  2. Step 2: Convert to fraction form
    139,389.69/192,357.27 = 75,726.93/x
  3. Step 3: Cross multiply
    139,389.69x = 192,357.27 × 75,726.93
  4. Step 4: Simplify right side
    139,389.69x = 14,566,625,520.28
  5. Step 5: Solve for x
    x = 14,566,625,520.28/139,389.69
  6. Step 6: Final answer
    x = 104,502.89

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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.