Home / 211,941.42-317,131.29-127,751.10

Finding the Fourth Proportional to 211,941.42, 317,131.29 and 127,751.10

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Solution

The fourth proportional to 211,941.42, 317,131.29 and 127,751.10 is: 191,155.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,941.42 : 317,131.29 = 127,751.10 : x
  2. Step 2: Convert to fraction form
    211,941.42/317,131.29 = 127,751.10/x
  3. Step 3: Cross multiply
    211,941.42x = 317,131.29 × 127,751.10
  4. Step 4: Simplify right side
    211,941.42x = 40,513,871,141.92
  5. Step 5: Solve for x
    x = 40,513,871,141.92/211,941.42
  6. Step 6: Final answer
    x = 191,155.99

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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.