Home / 117,077.77-161,550.96-65,395.45

Finding the Fourth Proportional to 117,077.77, 161,550.96 and 65,395.45

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Solution

The fourth proportional to 117,077.77, 161,550.96 and 65,395.45 is: 90,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,077.77 : 161,550.96 = 65,395.45 : x
  2. Step 2: Convert to fraction form
    117,077.77/161,550.96 = 65,395.45/x
  3. Step 3: Cross multiply
    117,077.77x = 161,550.96 × 65,395.45
  4. Step 4: Simplify right side
    117,077.77x = 10,564,697,727.13
  5. Step 5: Solve for x
    x = 10,564,697,727.13/117,077.77
  6. Step 6: Final answer
    x = 90,236.58

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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.