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Finding the Fourth Proportional to 101,563.52, 140,170.20 and 61,300.40

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Solution

The fourth proportional to 101,563.52, 140,170.20 and 61,300.40 is: 84,602.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,563.52 : 140,170.20 = 61,300.40 : x
  2. Step 2: Convert to fraction form
    101,563.52/140,170.20 = 61,300.40/x
  3. Step 3: Cross multiply
    101,563.52x = 140,170.20 × 61,300.40
  4. Step 4: Simplify right side
    101,563.52x = 8,592,489,328.08
  5. Step 5: Solve for x
    x = 8,592,489,328.08/101,563.52
  6. Step 6: Final answer
    x = 84,602.12

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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.