Home / 190,361.86-262,695.45-105,478.18

Finding the Fourth Proportional to 190,361.86, 262,695.45 and 105,478.18

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Solution

The fourth proportional to 190,361.86, 262,695.45 and 105,478.18 is: 145,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,361.86 : 262,695.45 = 105,478.18 : x
  2. Step 2: Convert to fraction form
    190,361.86/262,695.45 = 105,478.18/x
  3. Step 3: Cross multiply
    190,361.86x = 262,695.45 × 105,478.18
  4. Step 4: Simplify right side
    190,361.86x = 27,708,637,960.28
  5. Step 5: Solve for x
    x = 27,708,637,960.28/190,361.86
  6. Step 6: Final answer
    x = 145,557.72

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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.