Home / 129,303.84-193,977.52-66,151.28

Finding the Fourth Proportional to 129,303.84, 193,977.52 and 66,151.28

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Solution

The fourth proportional to 129,303.84, 193,977.52 and 66,151.28 is: 99,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,303.84 : 193,977.52 = 66,151.28 : x
  2. Step 2: Convert to fraction form
    129,303.84/193,977.52 = 66,151.28/x
  3. Step 3: Cross multiply
    129,303.84x = 193,977.52 × 66,151.28
  4. Step 4: Simplify right side
    129,303.84x = 12,831,861,239.23
  5. Step 5: Solve for x
    x = 12,831,861,239.23/129,303.84
  6. Step 6: Final answer
    x = 99,238.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.