Home / 210,839.04-316,300.89-77,719.98

Finding the Fourth Proportional to 210,839.04, 316,300.89 and 77,719.98

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Solution

The fourth proportional to 210,839.04, 316,300.89 and 77,719.98 is: 116,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,839.04 : 316,300.89 = 77,719.98 : x
  2. Step 2: Convert to fraction form
    210,839.04/316,300.89 = 77,719.98/x
  3. Step 3: Cross multiply
    210,839.04x = 316,300.89 × 77,719.98
  4. Step 4: Simplify right side
    210,839.04x = 24,582,898,844.78
  5. Step 5: Solve for x
    x = 24,582,898,844.78/210,839.04
  6. Step 6: Final answer
    x = 116,595.57

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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.