Home / 115,066.12-158,772.70-64,078.24

Finding the Fourth Proportional to 115,066.12, 158,772.70 and 64,078.24

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Solution

The fourth proportional to 115,066.12, 158,772.70 and 64,078.24 is: 88,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,066.12 : 158,772.70 = 64,078.24 : x
  2. Step 2: Convert to fraction form
    115,066.12/158,772.70 = 64,078.24/x
  3. Step 3: Cross multiply
    115,066.12x = 158,772.70 × 64,078.24
  4. Step 4: Simplify right side
    115,066.12x = 10,173,875,176.05
  5. Step 5: Solve for x
    x = 10,173,875,176.05/115,066.12
  6. Step 6: Final answer
    x = 88,417.64

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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.