Home / 156,817.80-235,248.30-68,068.80

Finding the Fourth Proportional to 156,817.80, 235,248.30 and 68,068.80

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Solution

The fourth proportional to 156,817.80, 235,248.30 and 68,068.80 is: 102,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,817.80 : 235,248.30 = 68,068.80 : x
  2. Step 2: Convert to fraction form
    156,817.80/235,248.30 = 68,068.80/x
  3. Step 3: Cross multiply
    156,817.80x = 235,248.30 × 68,068.80
  4. Step 4: Simplify right side
    156,817.80x = 16,013,069,483.04
  5. Step 5: Solve for x
    x = 16,013,069,483.04/156,817.80
  6. Step 6: Final answer
    x = 102,112.58

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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.