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Finding the Fourth Proportional to 145,453.79, 200,750.87 and 84,191.10

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Solution

The fourth proportional to 145,453.79, 200,750.87 and 84,191.10 is: 116,197.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,453.79 : 200,750.87 = 84,191.10 : x
  2. Step 2: Convert to fraction form
    145,453.79/200,750.87 = 84,191.10/x
  3. Step 3: Cross multiply
    145,453.79x = 200,750.87 × 84,191.10
  4. Step 4: Simplify right side
    145,453.79x = 16,901,436,571.26
  5. Step 5: Solve for x
    x = 16,901,436,571.26/145,453.79
  6. Step 6: Final answer
    x = 116,197.98

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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.