Home / 156,870.68-235,281.24-68,100.35

Finding the Fourth Proportional to 156,870.68, 235,281.24 and 68,100.35

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Solution

The fourth proportional to 156,870.68, 235,281.24 and 68,100.35 is: 102,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,870.68 : 235,281.24 = 68,100.35 : x
  2. Step 2: Convert to fraction form
    156,870.68/235,281.24 = 68,100.35/x
  3. Step 3: Cross multiply
    156,870.68x = 235,281.24 × 68,100.35
  4. Step 4: Simplify right side
    156,870.68x = 16,022,733,616.03
  5. Step 5: Solve for x
    x = 16,022,733,616.03/156,870.68
  6. Step 6: Final answer
    x = 102,139.76

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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.