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Finding the Fourth Proportional to 102,560.58, 153,803.34 and 43,400.88

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Solution

The fourth proportional to 102,560.58, 153,803.34 and 43,400.88 is: 65,085.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,560.58 : 153,803.34 = 43,400.88 : x
  2. Step 2: Convert to fraction form
    102,560.58/153,803.34 = 43,400.88/x
  3. Step 3: Cross multiply
    102,560.58x = 153,803.34 × 43,400.88
  4. Step 4: Simplify right side
    102,560.58x = 6,675,200,302.94
  5. Step 5: Solve for x
    x = 6,675,200,302.94/102,560.58
  6. Step 6: Final answer
    x = 65,085.44

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1.5x scale

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.