Home / 156,939.38-235,482.06-72,652.40

Finding the Fourth Proportional to 156,939.38, 235,482.06 and 72,652.40

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Solution

The fourth proportional to 156,939.38, 235,482.06 and 72,652.40 is: 109,012.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,939.38 : 235,482.06 = 72,652.40 : x
  2. Step 2: Convert to fraction form
    156,939.38/235,482.06 = 72,652.40/x
  3. Step 3: Cross multiply
    156,939.38x = 235,482.06 × 72,652.40
  4. Step 4: Simplify right side
    156,939.38x = 17,108,336,815.94
  5. Step 5: Solve for x
    x = 17,108,336,815.94/156,939.38
  6. Step 6: Final answer
    x = 109,012.39

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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.