Home / 145,186.24-200,356.32-81,529.60

Finding the Fourth Proportional to 145,186.24, 200,356.32 and 81,529.60

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Solution

The fourth proportional to 145,186.24, 200,356.32 and 81,529.60 is: 112,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,186.24 : 200,356.32 = 81,529.60 : x
  2. Step 2: Convert to fraction form
    145,186.24/200,356.32 = 81,529.60/x
  3. Step 3: Cross multiply
    145,186.24x = 200,356.32 × 81,529.60
  4. Step 4: Simplify right side
    145,186.24x = 16,334,970,627.07
  5. Step 5: Solve for x
    x = 16,334,970,627.07/145,186.24
  6. Step 6: Final answer
    x = 112,510.46

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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.