Home / 115,844.96-159,783.60-106,315.64

Finding the Fourth Proportional to 115,844.96, 159,783.60 and 106,315.64

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Solution

The fourth proportional to 115,844.96, 159,783.60 and 106,315.64 is: 146,639.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,844.96 : 159,783.60 = 106,315.64 : x
  2. Step 2: Convert to fraction form
    115,844.96/159,783.60 = 106,315.64/x
  3. Step 3: Cross multiply
    115,844.96x = 159,783.60 × 106,315.64
  4. Step 4: Simplify right side
    115,844.96x = 16,987,495,695.50
  5. Step 5: Solve for x
    x = 16,987,495,695.50/115,844.96
  6. Step 6: Final answer
    x = 146,639.92

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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.