Home / 153,036.99-229,624.74-78,118.47

Finding the Fourth Proportional to 153,036.99, 229,624.74 and 78,118.47

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Solution

The fourth proportional to 153,036.99, 229,624.74 and 78,118.47 is: 117,213.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,036.99 : 229,624.74 = 78,118.47 : x
  2. Step 2: Convert to fraction form
    153,036.99/229,624.74 = 78,118.47/x
  3. Step 3: Cross multiply
    153,036.99x = 229,624.74 × 78,118.47
  4. Step 4: Simplify right side
    153,036.99x = 17,937,933,362.95
  5. Step 5: Solve for x
    x = 17,937,933,362.95/153,036.99
  6. Step 6: Final answer
    x = 117,213.06

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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.