Home / 152,987.16-211,119.30-85,001.16

Finding the Fourth Proportional to 152,987.16, 211,119.30 and 85,001.16

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Solution

The fourth proportional to 152,987.16, 211,119.30 and 85,001.16 is: 117,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,987.16 : 211,119.30 = 85,001.16 : x
  2. Step 2: Convert to fraction form
    152,987.16/211,119.30 = 85,001.16/x
  3. Step 3: Cross multiply
    152,987.16x = 211,119.30 × 85,001.16
  4. Step 4: Simplify right side
    152,987.16x = 17,945,385,398.39
  5. Step 5: Solve for x
    x = 17,945,385,398.39/152,987.16
  6. Step 6: Final answer
    x = 117,299.94

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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.