Home / 112,187.89-154,821.18-61,200.64

Finding the Fourth Proportional to 112,187.89, 154,821.18 and 61,200.64

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Solution

The fourth proportional to 112,187.89, 154,821.18 and 61,200.64 is: 84,457.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,187.89 : 154,821.18 = 61,200.64 : x
  2. Step 2: Convert to fraction form
    112,187.89/154,821.18 = 61,200.64/x
  3. Step 3: Cross multiply
    112,187.89x = 154,821.18 × 61,200.64
  4. Step 4: Simplify right side
    112,187.89x = 9,475,155,301.56
  5. Step 5: Solve for x
    x = 9,475,155,301.56/112,187.89
  6. Step 6: Final answer
    x = 84,457.92

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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.