Home / 135,371.17-186,831.77-77,999.51

Finding the Fourth Proportional to 135,371.17, 186,831.77 and 77,999.51

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Solution

The fourth proportional to 135,371.17, 186,831.77 and 77,999.51 is: 107,650.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,371.17 : 186,831.77 = 77,999.51 : x
  2. Step 2: Convert to fraction form
    135,371.17/186,831.77 = 77,999.51/x
  3. Step 3: Cross multiply
    135,371.17x = 186,831.77 × 77,999.51
  4. Step 4: Simplify right side
    135,371.17x = 14,572,785,188.28
  5. Step 5: Solve for x
    x = 14,572,785,188.28/135,371.17
  6. Step 6: Final answer
    x = 107,650.58

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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.