Home / 127,975.23-191,990.86-39,235.66

Finding the Fourth Proportional to 127,975.23, 191,990.86 and 39,235.66

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Solution

The fourth proportional to 127,975.23, 191,990.86 and 39,235.66 is: 58,862.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,975.23 : 191,990.86 = 39,235.66 : x
  2. Step 2: Convert to fraction form
    127,975.23/191,990.86 = 39,235.66/x
  3. Step 3: Cross multiply
    127,975.23x = 191,990.86 × 39,235.66
  4. Step 4: Simplify right side
    127,975.23x = 7,532,887,528.00
  5. Step 5: Solve for x
    x = 7,532,887,528.00/127,975.23
  6. Step 6: Final answer
    x = 58,862.07

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1.5x scale

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.