Home / 113,455.48-170,259.78-85,396.27

Finding the Fourth Proportional to 113,455.48, 170,259.78 and 85,396.27

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Solution

The fourth proportional to 113,455.48, 170,259.78 and 85,396.27 is: 128,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,455.48 : 170,259.78 = 85,396.27 : x
  2. Step 2: Convert to fraction form
    113,455.48/170,259.78 = 85,396.27/x
  3. Step 3: Cross multiply
    113,455.48x = 170,259.78 × 85,396.27
  4. Step 4: Simplify right side
    113,455.48x = 14,539,550,143.02
  5. Step 5: Solve for x
    x = 14,539,550,143.02/113,455.48
  6. Step 6: Final answer
    x = 128,152.03

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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.