Home / 141,203.17-194,695.75-105,330.91

Finding the Fourth Proportional to 141,203.17, 194,695.75 and 105,330.91

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Solution

The fourth proportional to 141,203.17, 194,695.75 and 105,330.91 is: 145,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,203.17 : 194,695.75 = 105,330.91 : x
  2. Step 2: Convert to fraction form
    141,203.17/194,695.75 = 105,330.91/x
  3. Step 3: Cross multiply
    141,203.17x = 194,695.75 × 105,330.91
  4. Step 4: Simplify right side
    141,203.17x = 20,507,480,520.63
  5. Step 5: Solve for x
    x = 20,507,480,520.63/141,203.17
  6. Step 6: Final answer
    x = 145,233.85

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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.