Home / 131,328.76-181,238.22-74,738.92

Finding the Fourth Proportional to 131,328.76, 181,238.22 and 74,738.92

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Solution

The fourth proportional to 131,328.76, 181,238.22 and 74,738.92 is: 103,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,328.76 : 181,238.22 = 74,738.92 : x
  2. Step 2: Convert to fraction form
    131,328.76/181,238.22 = 74,738.92/x
  3. Step 3: Cross multiply
    131,328.76x = 181,238.22 × 74,738.92
  4. Step 4: Simplify right side
    131,328.76x = 13,545,548,825.52
  5. Step 5: Solve for x
    x = 13,545,548,825.52/131,328.76
  6. Step 6: Final answer
    x = 103,142.29

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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.