Home / 112,402.58-155,116.62-61,416.86

Finding the Fourth Proportional to 112,402.58, 155,116.62 and 61,416.86

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Solution

The fourth proportional to 112,402.58, 155,116.62 and 61,416.86 is: 84,755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,402.58 : 155,116.62 = 61,416.86 : x
  2. Step 2: Convert to fraction form
    112,402.58/155,116.62 = 61,416.86/x
  3. Step 3: Cross multiply
    112,402.58x = 155,116.62 × 61,416.86
  4. Step 4: Simplify right side
    112,402.58x = 9,526,774,958.63
  5. Step 5: Solve for x
    x = 9,526,774,958.63/112,402.58
  6. Step 6: Final answer
    x = 84,755.84

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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.