Home / 156,870.30-235,390.50-68,123.46

Finding the Fourth Proportional to 156,870.30, 235,390.50 and 68,123.46

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Solution

The fourth proportional to 156,870.30, 235,390.50 and 68,123.46 is: 102,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,870.30 : 235,390.50 = 68,123.46 : x
  2. Step 2: Convert to fraction form
    156,870.30/235,390.50 = 68,123.46/x
  3. Step 3: Cross multiply
    156,870.30x = 235,390.50 × 68,123.46
  4. Step 4: Simplify right side
    156,870.30x = 16,035,615,311.13
  5. Step 5: Solve for x
    x = 16,035,615,311.13/156,870.30
  6. Step 6: Final answer
    x = 102,222.12

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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.