Home / 156,903.40-235,222.84-68,090.01

Finding the Fourth Proportional to 156,903.40, 235,222.84 and 68,090.01

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Solution

The fourth proportional to 156,903.40, 235,222.84 and 68,090.01 is: 102,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.40 : 235,222.84 = 68,090.01 : x
  2. Step 2: Convert to fraction form
    156,903.40/235,222.84 = 68,090.01/x
  3. Step 3: Cross multiply
    156,903.40x = 235,222.84 × 68,090.01
  4. Step 4: Simplify right side
    156,903.40x = 16,016,325,527.83
  5. Step 5: Solve for x
    x = 16,016,325,527.83/156,903.40
  6. Step 6: Final answer
    x = 102,077.62

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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.