Home / 131,726.08-181,783.44-75,140.80

Finding the Fourth Proportional to 131,726.08, 181,783.44 and 75,140.80

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Solution

The fourth proportional to 131,726.08, 181,783.44 and 75,140.80 is: 103,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,726.08 : 181,783.44 = 75,140.80 : x
  2. Step 2: Convert to fraction form
    131,726.08/181,783.44 = 75,140.80/x
  3. Step 3: Cross multiply
    131,726.08x = 181,783.44 × 75,140.80
  4. Step 4: Simplify right side
    131,726.08x = 13,659,353,108.35
  5. Step 5: Solve for x
    x = 13,659,353,108.35/131,726.08
  6. Step 6: Final answer
    x = 103,695.13

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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.