Home / 99,145.68-136,812.60-56,695.92

Finding the Fourth Proportional to 99,145.68, 136,812.60 and 56,695.92

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Solution

The fourth proportional to 99,145.68, 136,812.60 and 56,695.92 is: 78,235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,145.68 : 136,812.60 = 56,695.92 : x
  2. Step 2: Convert to fraction form
    99,145.68/136,812.60 = 56,695.92/x
  3. Step 3: Cross multiply
    99,145.68x = 136,812.60 × 56,695.92
  4. Step 4: Simplify right side
    99,145.68x = 7,756,716,224.59
  5. Step 5: Solve for x
    x = 7,756,716,224.59/99,145.68
  6. Step 6: Final answer
    x = 78,235.54

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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.