Home / 102,702.02-154,014.15-40,338.50

Finding the Fourth Proportional to 102,702.02, 154,014.15 and 40,338.50

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Solution

The fourth proportional to 102,702.02, 154,014.15 and 40,338.50 is: 60,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,702.02 : 154,014.15 = 40,338.50 : x
  2. Step 2: Convert to fraction form
    102,702.02/154,014.15 = 40,338.50/x
  3. Step 3: Cross multiply
    102,702.02x = 154,014.15 × 40,338.50
  4. Step 4: Simplify right side
    102,702.02x = 6,212,699,789.78
  5. Step 5: Solve for x
    x = 6,212,699,789.78/102,702.02
  6. Step 6: Final answer
    x = 60,492.48

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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.