Home / 211,191.86-316,835.07-70,946.66

Finding the Fourth Proportional to 211,191.86, 316,835.07 and 70,946.66

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Solution

The fourth proportional to 211,191.86, 316,835.07 and 70,946.66 is: 106,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,191.86 : 316,835.07 = 70,946.66 : x
  2. Step 2: Convert to fraction form
    211,191.86/316,835.07 = 70,946.66/x
  3. Step 3: Cross multiply
    211,191.86x = 316,835.07 × 70,946.66
  4. Step 4: Simplify right side
    211,191.86x = 22,478,389,987.37
  5. Step 5: Solve for x
    x = 22,478,389,987.37/211,191.86
  6. Step 6: Final answer
    x = 106,435.87

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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.