Home / 136,993.64-189,050.55-76,564.22

Finding the Fourth Proportional to 136,993.64, 189,050.55 and 76,564.22

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Solution

The fourth proportional to 136,993.64, 189,050.55 and 76,564.22 is: 105,658.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,993.64 : 189,050.55 = 76,564.22 : x
  2. Step 2: Convert to fraction form
    136,993.64/189,050.55 = 76,564.22/x
  3. Step 3: Cross multiply
    136,993.64x = 189,050.55 × 76,564.22
  4. Step 4: Simplify right side
    136,993.64x = 14,474,507,901.32
  5. Step 5: Solve for x
    x = 14,474,507,901.32/136,993.64
  6. Step 6: Final answer
    x = 105,658.25

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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.