Home / 113,887.20-170,427.60-99,256.80

Finding the Fourth Proportional to 113,887.20, 170,427.60 and 99,256.80

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Solution

The fourth proportional to 113,887.20, 170,427.60 and 99,256.80 is: 148,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,887.20 : 170,427.60 = 99,256.80 : x
  2. Step 2: Convert to fraction form
    113,887.20/170,427.60 = 99,256.80/x
  3. Step 3: Cross multiply
    113,887.20x = 170,427.60 × 99,256.80
  4. Step 4: Simplify right side
    113,887.20x = 16,916,098,207.68
  5. Step 5: Solve for x
    x = 16,916,098,207.68/113,887.20
  6. Step 6: Final answer
    x = 148,533.80

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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.