Home / 137,859.79-190,233.07-77,416.69

Finding the Fourth Proportional to 137,859.79, 190,233.07 and 77,416.69

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Solution

The fourth proportional to 137,859.79, 190,233.07 and 77,416.69 is: 106,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,859.79 : 190,233.07 = 77,416.69 : x
  2. Step 2: Convert to fraction form
    137,859.79/190,233.07 = 77,416.69/x
  3. Step 3: Cross multiply
    137,859.79x = 190,233.07 × 77,416.69
  4. Step 4: Simplify right side
    137,859.79x = 14,727,214,607.94
  5. Step 5: Solve for x
    x = 14,727,214,607.94/137,859.79
  6. Step 6: Final answer
    x = 106,827.48

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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.