Home / 153,199.35-211,455.56-107,890.79

Finding the Fourth Proportional to 153,199.35, 211,455.56 and 107,890.79

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Solution

The fourth proportional to 153,199.35, 211,455.56 and 107,890.79 is: 148,917.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,199.35 : 211,455.56 = 107,890.79 : x
  2. Step 2: Convert to fraction form
    153,199.35/211,455.56 = 107,890.79/x
  3. Step 3: Cross multiply
    153,199.35x = 211,455.56 × 107,890.79
  4. Step 4: Simplify right side
    153,199.35x = 22,814,106,630.74
  5. Step 5: Solve for x
    x = 22,814,106,630.74/153,199.35
  6. Step 6: Final answer
    x = 148,917.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.