Home / 152,921.73-211,031.99-85,853.73

Finding the Fourth Proportional to 152,921.73, 211,031.99 and 85,853.73

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Solution

The fourth proportional to 152,921.73, 211,031.99 and 85,853.73 is: 118,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,921.73 : 211,031.99 = 85,853.73 : x
  2. Step 2: Convert to fraction form
    152,921.73/211,031.99 = 85,853.73/x
  3. Step 3: Cross multiply
    152,921.73x = 211,031.99 × 85,853.73
  4. Step 4: Simplify right side
    152,921.73x = 18,117,883,490.82
  5. Step 5: Solve for x
    x = 18,117,883,490.82/152,921.73
  6. Step 6: Final answer
    x = 118,478.15

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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.