Home / 190,560.72-262,989.56-105,705.20

Finding the Fourth Proportional to 190,560.72, 262,989.56 and 105,705.20

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Solution

The fourth proportional to 190,560.72, 262,989.56 and 105,705.20 is: 145,881.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,560.72 : 262,989.56 = 105,705.20 : x
  2. Step 2: Convert to fraction form
    190,560.72/262,989.56 = 105,705.20/x
  3. Step 3: Cross multiply
    190,560.72x = 262,989.56 × 105,705.20
  4. Step 4: Simplify right side
    190,560.72x = 27,799,364,037.71
  5. Step 5: Solve for x
    x = 27,799,364,037.71/190,560.72
  6. Step 6: Final answer
    x = 145,881.92

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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.