Home / 210,896.04-316,347.68-77,707.72

Finding the Fourth Proportional to 210,896.04, 316,347.68 and 77,707.72

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Solution

The fourth proportional to 210,896.04, 316,347.68 and 77,707.72 is: 116,562.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,896.04 : 316,347.68 = 77,707.72 : x
  2. Step 2: Convert to fraction form
    210,896.04/316,347.68 = 77,707.72/x
  3. Step 3: Cross multiply
    210,896.04x = 316,347.68 × 77,707.72
  4. Step 4: Simplify right side
    210,896.04x = 24,582,656,940.09
  5. Step 5: Solve for x
    x = 24,582,656,940.09/210,896.04
  6. Step 6: Final answer
    x = 116,562.91

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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.