Home / 127,207.17-190,586.23-77,185.69

Finding the Fourth Proportional to 127,207.17, 190,586.23 and 77,185.69

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Solution

The fourth proportional to 127,207.17, 190,586.23 and 77,185.69 is: 115,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,207.17 : 190,586.23 = 77,185.69 : x
  2. Step 2: Convert to fraction form
    127,207.17/190,586.23 = 77,185.69/x
  3. Step 3: Cross multiply
    127,207.17x = 190,586.23 × 77,185.69
  4. Step 4: Simplify right side
    127,207.17x = 14,710,528,997.62
  5. Step 5: Solve for x
    x = 14,710,528,997.62/127,207.17
  6. Step 6: Final answer
    x = 115,642.29

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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.