Home / 211,878.40-317,816.64-71,733.76

Finding the Fourth Proportional to 211,878.40, 317,816.64 and 71,733.76

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Solution

The fourth proportional to 211,878.40, 317,816.64 and 71,733.76 is: 107,600.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,878.40 : 317,816.64 = 71,733.76 : x
  2. Step 2: Convert to fraction form
    211,878.40/317,816.64 = 71,733.76/x
  3. Step 3: Cross multiply
    211,878.40x = 317,816.64 × 71,733.76
  4. Step 4: Simplify right side
    211,878.40x = 22,798,182,577.77
  5. Step 5: Solve for x
    x = 22,798,182,577.77/211,878.40
  6. Step 6: Final answer
    x = 107,600.31

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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.