Home / 103,511.36-155,156.28-53,541.14

Finding the Fourth Proportional to 103,511.36, 155,156.28 and 53,541.14

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Solution

The fourth proportional to 103,511.36, 155,156.28 and 53,541.14 is: 80,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,511.36 : 155,156.28 = 53,541.14 : x
  2. Step 2: Convert to fraction form
    103,511.36/155,156.28 = 53,541.14/x
  3. Step 3: Cross multiply
    103,511.36x = 155,156.28 × 53,541.14
  4. Step 4: Simplify right side
    103,511.36x = 8,307,243,333.58
  5. Step 5: Solve for x
    x = 8,307,243,333.58/103,511.36
  6. Step 6: Final answer
    x = 80,254.42

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1.5x scale

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.