Home / 131,632.08-181,656.44-72,016.08

Finding the Fourth Proportional to 131,632.08, 181,656.44 and 72,016.08

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Solution

The fourth proportional to 131,632.08, 181,656.44 and 72,016.08 is: 99,384.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,632.08 : 181,656.44 = 72,016.08 : x
  2. Step 2: Convert to fraction form
    131,632.08/181,656.44 = 72,016.08/x
  3. Step 3: Cross multiply
    131,632.08x = 181,656.44 × 72,016.08
  4. Step 4: Simplify right side
    131,632.08x = 13,082,184,715.56
  5. Step 5: Solve for x
    x = 13,082,184,715.56/131,632.08
  6. Step 6: Final answer
    x = 99,384.47

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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.