Home / 156,975.18-235,457.55-68,228.79

Finding the Fourth Proportional to 156,975.18, 235,457.55 and 68,228.79

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Solution

The fourth proportional to 156,975.18, 235,457.55 and 68,228.79 is: 102,340.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.18 : 235,457.55 = 68,228.79 : x
  2. Step 2: Convert to fraction form
    156,975.18/235,457.55 = 68,228.79/x
  3. Step 3: Cross multiply
    156,975.18x = 235,457.55 × 68,228.79
  4. Step 4: Simplify right side
    156,975.18x = 16,064,983,732.86
  5. Step 5: Solve for x
    x = 16,064,983,732.86/156,975.18
  6. Step 6: Final answer
    x = 102,340.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.