Home / 127,263.89-190,675.33-77,239.17

Finding the Fourth Proportional to 127,263.89, 190,675.33 and 77,239.17

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Solution

The fourth proportional to 127,263.89, 190,675.33 and 77,239.17 is: 115,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,263.89 : 190,675.33 = 77,239.17 : x
  2. Step 2: Convert to fraction form
    127,263.89/190,675.33 = 77,239.17/x
  3. Step 3: Cross multiply
    127,263.89x = 190,675.33 × 77,239.17
  4. Step 4: Simplify right side
    127,263.89x = 14,727,604,228.68
  5. Step 5: Solve for x
    x = 14,727,604,228.68/127,263.89
  6. Step 6: Final answer
    x = 115,724.93

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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.