Home / 125,603.15-189,242.51-113,609.16

Finding the Fourth Proportional to 125,603.15, 189,242.51 and 113,609.16

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Solution

The fourth proportional to 125,603.15, 189,242.51 and 113,609.16 is: 171,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,603.15 : 189,242.51 = 113,609.16 : x
  2. Step 2: Convert to fraction form
    125,603.15/189,242.51 = 113,609.16/x
  3. Step 3: Cross multiply
    125,603.15x = 189,242.51 × 113,609.16
  4. Step 4: Simplify right side
    125,603.15x = 21,499,682,029.35
  5. Step 5: Solve for x
    x = 21,499,682,029.35/125,603.15
  6. Step 6: Final answer
    x = 171,171.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.