Home / 124,642.36-172,088.94-76,965.76

Finding the Fourth Proportional to 124,642.36, 172,088.94 and 76,965.76

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Solution

The fourth proportional to 124,642.36, 172,088.94 and 76,965.76 is: 106,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,642.36 : 172,088.94 = 76,965.76 : x
  2. Step 2: Convert to fraction form
    124,642.36/172,088.94 = 76,965.76/x
  3. Step 3: Cross multiply
    124,642.36x = 172,088.94 × 76,965.76
  4. Step 4: Simplify right side
    124,642.36x = 13,244,956,054.69
  5. Step 5: Solve for x
    x = 13,244,956,054.69/124,642.36
  6. Step 6: Final answer
    x = 106,263.68

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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.