Home / 99,120.74-136,793.34-56,100.24

Finding the Fourth Proportional to 99,120.74, 136,793.34 and 56,100.24

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Solution

The fourth proportional to 99,120.74, 136,793.34 and 56,100.24 is: 77,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,120.74 : 136,793.34 = 56,100.24 : x
  2. Step 2: Convert to fraction form
    99,120.74/136,793.34 = 56,100.24/x
  3. Step 3: Cross multiply
    99,120.74x = 136,793.34 × 56,100.24
  4. Step 4: Simplify right side
    99,120.74x = 7,674,139,204.40
  5. Step 5: Solve for x
    x = 7,674,139,204.40/99,120.74
  6. Step 6: Final answer
    x = 77,422.14

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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.