Home / 141,440.76-195,193.28-77,783.40

Finding the Fourth Proportional to 141,440.76, 195,193.28 and 77,783.40

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Solution

The fourth proportional to 141,440.76, 195,193.28 and 77,783.40 is: 107,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,440.76 : 195,193.28 = 77,783.40 : x
  2. Step 2: Convert to fraction form
    141,440.76/195,193.28 = 77,783.40/x
  3. Step 3: Cross multiply
    141,440.76x = 195,193.28 × 77,783.40
  4. Step 4: Simplify right side
    141,440.76x = 15,182,796,975.55
  5. Step 5: Solve for x
    x = 15,182,796,975.55/141,440.76
  6. Step 6: Final answer
    x = 107,343.86

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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.