Home / 145,656.16-201,024.64-82,006.40

Finding the Fourth Proportional to 145,656.16, 201,024.64 and 82,006.40

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Solution

The fourth proportional to 145,656.16, 201,024.64 and 82,006.40 is: 113,179.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,656.16 : 201,024.64 = 82,006.40 : x
  2. Step 2: Convert to fraction form
    145,656.16/201,024.64 = 82,006.40/x
  3. Step 3: Cross multiply
    145,656.16x = 201,024.64 × 82,006.40
  4. Step 4: Simplify right side
    145,656.16x = 16,485,307,037.70
  5. Step 5: Solve for x
    x = 16,485,307,037.70/145,656.16
  6. Step 6: Final answer
    x = 113,179.61

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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.