Home / 211,053.80-316,529.50-70,776.04

Finding the Fourth Proportional to 211,053.80, 316,529.50 and 70,776.04

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Solution

The fourth proportional to 211,053.80, 316,529.50 and 70,776.04 is: 106,146.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,053.80 : 316,529.50 = 70,776.04 : x
  2. Step 2: Convert to fraction form
    211,053.80/316,529.50 = 70,776.04/x
  3. Step 3: Cross multiply
    211,053.80x = 316,529.50 × 70,776.04
  4. Step 4: Simplify right side
    211,053.80x = 22,402,704,553.18
  5. Step 5: Solve for x
    x = 22,402,704,553.18/211,053.80
  6. Step 6: Final answer
    x = 106,146.89

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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.