Home / 164,020.61-226,365.17-100,400.45

Finding the Fourth Proportional to 164,020.61, 226,365.17 and 100,400.45

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Solution

The fourth proportional to 164,020.61, 226,365.17 and 100,400.45 is: 138,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,020.61 : 226,365.17 = 100,400.45 : x
  2. Step 2: Convert to fraction form
    164,020.61/226,365.17 = 100,400.45/x
  3. Step 3: Cross multiply
    164,020.61x = 226,365.17 × 100,400.45
  4. Step 4: Simplify right side
    164,020.61x = 22,727,164,430.32
  5. Step 5: Solve for x
    x = 22,727,164,430.32/164,020.61
  6. Step 6: Final answer
    x = 138,562.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.