Home / 115,847.64-159,865.38-65,547.72

Finding the Fourth Proportional to 115,847.64, 159,865.38 and 65,547.72

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Solution

The fourth proportional to 115,847.64, 159,865.38 and 65,547.72 is: 90,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,847.64 : 159,865.38 = 65,547.72 : x
  2. Step 2: Convert to fraction form
    115,847.64/159,865.38 = 65,547.72/x
  3. Step 3: Cross multiply
    115,847.64x = 159,865.38 × 65,547.72
  4. Step 4: Simplify right side
    115,847.64x = 10,478,811,165.93
  5. Step 5: Solve for x
    x = 10,478,811,165.93/115,847.64
  6. Step 6: Final answer
    x = 90,453.38

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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.