Home / 137,180.60-189,298.43-76,746.50

Finding the Fourth Proportional to 137,180.60, 189,298.43 and 76,746.50

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Solution

The fourth proportional to 137,180.60, 189,298.43 and 76,746.50 is: 105,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,180.60 : 189,298.43 = 76,746.50 : x
  2. Step 2: Convert to fraction form
    137,180.60/189,298.43 = 76,746.50/x
  3. Step 3: Cross multiply
    137,180.60x = 189,298.43 × 76,746.50
  4. Step 4: Simplify right side
    137,180.60x = 14,527,991,958.00
  5. Step 5: Solve for x
    x = 14,527,991,958.00/137,180.60
  6. Step 6: Final answer
    x = 105,904.13

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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.