Home / 115,125.80-158,873.46-64,825.16

Finding the Fourth Proportional to 115,125.80, 158,873.46 and 64,825.16

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Solution

The fourth proportional to 115,125.80, 158,873.46 and 64,825.16 is: 89,458.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,125.80 : 158,873.46 = 64,825.16 : x
  2. Step 2: Convert to fraction form
    115,125.80/158,873.46 = 64,825.16/x
  3. Step 3: Cross multiply
    115,125.80x = 158,873.46 × 64,825.16
  4. Step 4: Simplify right side
    115,125.80x = 10,298,997,464.25
  5. Step 5: Solve for x
    x = 10,298,997,464.25/115,125.80
  6. Step 6: Final answer
    x = 89,458.64

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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.