Home / 152,909.91-211,008.38-84,931.20

Finding the Fourth Proportional to 152,909.91, 211,008.38 and 84,931.20

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Solution

The fourth proportional to 152,909.91, 211,008.38 and 84,931.20 is: 117,201.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,909.91 : 211,008.38 = 84,931.20 : x
  2. Step 2: Convert to fraction form
    152,909.91/211,008.38 = 84,931.20/x
  3. Step 3: Cross multiply
    152,909.91x = 211,008.38 × 84,931.20
  4. Step 4: Simplify right side
    152,909.91x = 17,921,194,498.80
  5. Step 5: Solve for x
    x = 17,921,194,498.80/152,909.91
  6. Step 6: Final answer
    x = 117,201.00

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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.