Home / 131,496.64-181,421.04-74,867.92

Finding the Fourth Proportional to 131,496.64, 181,421.04 and 74,867.92

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Solution

The fourth proportional to 131,496.64, 181,421.04 and 74,867.92 is: 103,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,496.64 : 181,421.04 = 74,867.92 : x
  2. Step 2: Convert to fraction form
    131,496.64/181,421.04 = 74,867.92/x
  3. Step 3: Cross multiply
    131,496.64x = 181,421.04 × 74,867.92
  4. Step 4: Simplify right side
    131,496.64x = 13,582,615,909.04
  5. Step 5: Solve for x
    x = 13,582,615,909.04/131,496.64
  6. Step 6: Final answer
    x = 103,292.49

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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.