Home / 189,459.66-261,465.12-112,958.40

Finding the Fourth Proportional to 189,459.66, 261,465.12 and 112,958.40

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Solution

The fourth proportional to 189,459.66, 261,465.12 and 112,958.40 is: 155,889.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,459.66 : 261,465.12 = 112,958.40 : x
  2. Step 2: Convert to fraction form
    189,459.66/261,465.12 = 112,958.40/x
  3. Step 3: Cross multiply
    189,459.66x = 261,465.12 × 112,958.40
  4. Step 4: Simplify right side
    189,459.66x = 29,534,681,611.01
  5. Step 5: Solve for x
    x = 29,534,681,611.01/189,459.66
  6. Step 6: Final answer
    x = 155,889.02

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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.