Home / 127,999.16-176,643.09-69,859.07

Finding the Fourth Proportional to 127,999.16, 176,643.09 and 69,859.07

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Solution

The fourth proportional to 127,999.16, 176,643.09 and 69,859.07 is: 96,407.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,999.16 : 176,643.09 = 69,859.07 : x
  2. Step 2: Convert to fraction form
    127,999.16/176,643.09 = 69,859.07/x
  3. Step 3: Cross multiply
    127,999.16x = 176,643.09 × 69,859.07
  4. Step 4: Simplify right side
    127,999.16x = 12,340,122,168.96
  5. Step 5: Solve for x
    x = 12,340,122,168.96/127,999.16
  6. Step 6: Final answer
    x = 96,407.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.