Home / 99,149.28-136,825.62-56,707.74

Finding the Fourth Proportional to 99,149.28, 136,825.62 and 56,707.74

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Solution

The fourth proportional to 99,149.28, 136,825.62 and 56,707.74 is: 78,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,149.28 : 136,825.62 = 56,707.74 : x
  2. Step 2: Convert to fraction form
    99,149.28/136,825.62 = 56,707.74/x
  3. Step 3: Cross multiply
    99,149.28x = 136,825.62 × 56,707.74
  4. Step 4: Simplify right side
    99,149.28x = 7,759,071,684.30
  5. Step 5: Solve for x
    x = 7,759,071,684.30/99,149.28
  6. Step 6: Final answer
    x = 78,256.46

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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.