Home / 211,171.08-316,526.22-77,939.04

Finding the Fourth Proportional to 211,171.08, 316,526.22 and 77,939.04

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Solution

The fourth proportional to 211,171.08, 316,526.22 and 77,939.04 is: 116,823.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,171.08 : 316,526.22 = 77,939.04 : x
  2. Step 2: Convert to fraction form
    211,171.08/316,526.22 = 77,939.04/x
  3. Step 3: Cross multiply
    211,171.08x = 316,526.22 × 77,939.04
  4. Step 4: Simplify right side
    211,171.08x = 24,669,749,721.63
  5. Step 5: Solve for x
    x = 24,669,749,721.63/211,171.08
  6. Step 6: Final answer
    x = 116,823.52

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1.5x scale

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.