Home / 211,169.40-316,532.16-77,964.72

Finding the Fourth Proportional to 211,169.40, 316,532.16 and 77,964.72

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Solution

The fourth proportional to 211,169.40, 316,532.16 and 77,964.72 is: 116,865.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,169.40 : 316,532.16 = 77,964.72 : x
  2. Step 2: Convert to fraction form
    211,169.40/316,532.16 = 77,964.72/x
  3. Step 3: Cross multiply
    211,169.40x = 316,532.16 × 77,964.72
  4. Step 4: Simplify right side
    211,169.40x = 24,678,341,225.40
  5. Step 5: Solve for x
    x = 24,678,341,225.40/211,169.40
  6. Step 6: Final answer
    x = 116,865.14

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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.