Home / 107,629.72-148,444.86-69,916.12

Finding the Fourth Proportional to 107,629.72, 148,444.86 and 69,916.12

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Solution

The fourth proportional to 107,629.72, 148,444.86 and 69,916.12 is: 96,429.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,629.72 : 148,444.86 = 69,916.12 : x
  2. Step 2: Convert to fraction form
    107,629.72/148,444.86 = 69,916.12/x
  3. Step 3: Cross multiply
    107,629.72x = 148,444.86 × 69,916.12
  4. Step 4: Simplify right side
    107,629.72x = 10,378,688,645.14
  5. Step 5: Solve for x
    x = 10,378,688,645.14/107,629.72
  6. Step 6: Final answer
    x = 96,429.58

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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.