Home / 163,431.48-245,147.40-51,112.26

Finding the Fourth Proportional to 163,431.48, 245,147.40 and 51,112.26

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Solution

The fourth proportional to 163,431.48, 245,147.40 and 51,112.26 is: 76,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,431.48 : 245,147.40 = 51,112.26 : x
  2. Step 2: Convert to fraction form
    163,431.48/245,147.40 = 51,112.26/x
  3. Step 3: Cross multiply
    163,431.48x = 245,147.40 × 51,112.26
  4. Step 4: Simplify right side
    163,431.48x = 12,530,037,647.12
  5. Step 5: Solve for x
    x = 12,530,037,647.12/163,431.48
  6. Step 6: Final answer
    x = 76,668.45

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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.