Home / 213,430.33-320,145.36-63,775.61

Finding the Fourth Proportional to 213,430.33, 320,145.36 and 63,775.61

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Solution

The fourth proportional to 213,430.33, 320,145.36 and 63,775.61 is: 95,663.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,430.33 : 320,145.36 = 63,775.61 : x
  2. Step 2: Convert to fraction form
    213,430.33/320,145.36 = 63,775.61/x
  3. Step 3: Cross multiply
    213,430.33x = 320,145.36 × 63,775.61
  4. Step 4: Simplify right side
    213,430.33x = 20,417,465,622.67
  5. Step 5: Solve for x
    x = 20,417,465,622.67/213,430.33
  6. Step 6: Final answer
    x = 95,663.37

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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.