Home / 152,911.48-229,145.44-86,209.30

Finding the Fourth Proportional to 152,911.48, 229,145.44 and 86,209.30

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Solution

The fourth proportional to 152,911.48, 229,145.44 and 86,209.30 is: 129,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,911.48 : 229,145.44 = 86,209.30 : x
  2. Step 2: Convert to fraction form
    152,911.48/229,145.44 = 86,209.30/x
  3. Step 3: Cross multiply
    152,911.48x = 229,145.44 × 86,209.30
  4. Step 4: Simplify right side
    152,911.48x = 19,754,467,980.59
  5. Step 5: Solve for x
    x = 19,754,467,980.59/152,911.48
  6. Step 6: Final answer
    x = 129,188.91

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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.