Home / 161,426-222,707.72-100,973.68

Finding the Fourth Proportional to 161,426, 222,707.72 and 100,973.68

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Solution

The fourth proportional to 161,426, 222,707.72 and 100,973.68 is: 139,306.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,426 : 222,707.72 = 100,973.68 : x
  2. Step 2: Convert to fraction form
    161,426/222,707.72 = 100,973.68/x
  3. Step 3: Cross multiply
    161,426x = 222,707.72 × 100,973.68
  4. Step 4: Simplify right side
    161,426x = 22,487,618,052.81
  5. Step 5: Solve for x
    x = 22,487,618,052.81/161,426
  6. Step 6: Final answer
    x = 139,306.05

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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.