Home / 145,132.20-217,410.30-127,813.80

Finding the Fourth Proportional to 145,132.20, 217,410.30 and 127,813.80

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Solution

The fourth proportional to 145,132.20, 217,410.30 and 127,813.80 is: 191,467.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,132.20 : 217,410.30 = 127,813.80 : x
  2. Step 2: Convert to fraction form
    145,132.20/217,410.30 = 127,813.80/x
  3. Step 3: Cross multiply
    145,132.20x = 217,410.30 × 127,813.80
  4. Step 4: Simplify right side
    145,132.20x = 27,788,036,602.14
  5. Step 5: Solve for x
    x = 27,788,036,602.14/145,132.20
  6. Step 6: Final answer
    x = 191,467.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.