Home / 124,628.38-186,986.28-77,826.58

Finding the Fourth Proportional to 124,628.38, 186,986.28 and 77,826.58

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Solution

The fourth proportional to 124,628.38, 186,986.28 and 77,826.58 is: 116,767.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,628.38 : 186,986.28 = 77,826.58 : x
  2. Step 2: Convert to fraction form
    124,628.38/186,986.28 = 77,826.58/x
  3. Step 3: Cross multiply
    124,628.38x = 186,986.28 × 77,826.58
  4. Step 4: Simplify right side
    124,628.38x = 14,552,502,679.32
  5. Step 5: Solve for x
    x = 14,552,502,679.32/124,628.38
  6. Step 6: Final answer
    x = 116,767.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.