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Finding the Fourth Proportional to 113,637.60, 170,310.60 and 54,345.60

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Solution

The fourth proportional to 113,637.60, 170,310.60 and 54,345.60 is: 81,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,637.60 : 170,310.60 = 54,345.60 : x
  2. Step 2: Convert to fraction form
    113,637.60/170,310.60 = 54,345.60/x
  3. Step 3: Cross multiply
    113,637.60x = 170,310.60 × 54,345.60
  4. Step 4: Simplify right side
    113,637.60x = 9,255,631,743.36
  5. Step 5: Solve for x
    x = 9,255,631,743.36/113,637.60
  6. Step 6: Final answer
    x = 81,448.67

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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.