Home / 137,200.64-189,337.60-76,771.40

Finding the Fourth Proportional to 137,200.64, 189,337.60 and 76,771.40

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Solution

The fourth proportional to 137,200.64, 189,337.60 and 76,771.40 is: 105,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,200.64 : 189,337.60 = 76,771.40 : x
  2. Step 2: Convert to fraction form
    137,200.64/189,337.60 = 76,771.40/x
  3. Step 3: Cross multiply
    137,200.64x = 189,337.60 × 76,771.40
  4. Step 4: Simplify right side
    137,200.64x = 14,535,712,624.64
  5. Step 5: Solve for x
    x = 14,535,712,624.64/137,200.64
  6. Step 6: Final answer
    x = 105,944.93

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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.