Home / 112,143.69-154,748.48-64,394.19

Finding the Fourth Proportional to 112,143.69, 154,748.48 and 64,394.19

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Solution

The fourth proportional to 112,143.69, 154,748.48 and 64,394.19 is: 88,858.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,143.69 : 154,748.48 = 64,394.19 : x
  2. Step 2: Convert to fraction form
    112,143.69/154,748.48 = 64,394.19/x
  3. Step 3: Cross multiply
    112,143.69x = 154,748.48 × 64,394.19
  4. Step 4: Simplify right side
    112,143.69x = 9,964,902,701.36
  5. Step 5: Solve for x
    x = 9,964,902,701.36/112,143.69
  6. Step 6: Final answer
    x = 88,858.35

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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.