Home / 211,178.35-316,770.77-70,938.19

Finding the Fourth Proportional to 211,178.35, 316,770.77 and 70,938.19

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Solution

The fourth proportional to 211,178.35, 316,770.77 and 70,938.19 is: 106,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,178.35 : 316,770.77 = 70,938.19 : x
  2. Step 2: Convert to fraction form
    211,178.35/316,770.77 = 70,938.19/x
  3. Step 3: Cross multiply
    211,178.35x = 316,770.77 × 70,938.19
  4. Step 4: Simplify right side
    211,178.35x = 22,471,145,068.71
  5. Step 5: Solve for x
    x = 22,471,145,068.71/211,178.35
  6. Step 6: Final answer
    x = 106,408.38

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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.