Home / 115,145.01-172,507.07-83,476.55

Finding the Fourth Proportional to 115,145.01, 172,507.07 and 83,476.55

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Solution

The fourth proportional to 115,145.01, 172,507.07 and 83,476.55 is: 125,062.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,145.01 : 172,507.07 = 83,476.55 : x
  2. Step 2: Convert to fraction form
    115,145.01/172,507.07 = 83,476.55/x
  3. Step 3: Cross multiply
    115,145.01x = 172,507.07 × 83,476.55
  4. Step 4: Simplify right side
    115,145.01x = 14,400,293,774.29
  5. Step 5: Solve for x
    x = 14,400,293,774.29/115,145.01
  6. Step 6: Final answer
    x = 125,062.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.