Home / 152,808.45-211,088.31-145,335.12

Finding the Fourth Proportional to 152,808.45, 211,088.31 and 145,335.12

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Solution

The fourth proportional to 152,808.45, 211,088.31 and 145,335.12 is: 200,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,808.45 : 211,088.31 = 145,335.12 : x
  2. Step 2: Convert to fraction form
    152,808.45/211,088.31 = 145,335.12/x
  3. Step 3: Cross multiply
    152,808.45x = 211,088.31 × 145,335.12
  4. Step 4: Simplify right side
    152,808.45x = 30,678,544,864.45
  5. Step 5: Solve for x
    x = 30,678,544,864.45/152,808.45
  6. Step 6: Final answer
    x = 200,764.71

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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.