Home / 102,102.45-140,880.72-59,652.78

Finding the Fourth Proportional to 102,102.45, 140,880.72 and 59,652.78

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Solution

The fourth proportional to 102,102.45, 140,880.72 and 59,652.78 is: 82,308.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,102.45 : 140,880.72 = 59,652.78 : x
  2. Step 2: Convert to fraction form
    102,102.45/140,880.72 = 59,652.78/x
  3. Step 3: Cross multiply
    102,102.45x = 140,880.72 × 59,652.78
  4. Step 4: Simplify right side
    102,102.45x = 8,403,926,596.40
  5. Step 5: Solve for x
    x = 8,403,926,596.40/102,102.45
  6. Step 6: Final answer
    x = 82,308.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.