Home / 155,749.50-233,653.44-72,643.50

Finding the Fourth Proportional to 155,749.50, 233,653.44 and 72,643.50

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Solution

The fourth proportional to 155,749.50, 233,653.44 and 72,643.50 is: 108,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,749.50 : 233,653.44 = 72,643.50 : x
  2. Step 2: Convert to fraction form
    155,749.50/233,653.44 = 72,643.50/x
  3. Step 3: Cross multiply
    155,749.50x = 233,653.44 × 72,643.50
  4. Step 4: Simplify right side
    155,749.50x = 16,973,403,668.64
  5. Step 5: Solve for x
    x = 16,973,403,668.64/155,749.50
  6. Step 6: Final answer
    x = 108,978.86

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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.