Home / 111,813.12-154,299.31-64,063.40

Finding the Fourth Proportional to 111,813.12, 154,299.31 and 64,063.40

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Solution

The fourth proportional to 111,813.12, 154,299.31 and 64,063.40 is: 88,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,813.12 : 154,299.31 = 64,063.40 : x
  2. Step 2: Convert to fraction form
    111,813.12/154,299.31 = 64,063.40/x
  3. Step 3: Cross multiply
    111,813.12x = 154,299.31 × 64,063.40
  4. Step 4: Simplify right side
    111,813.12x = 9,884,937,484.60
  5. Step 5: Solve for x
    x = 9,884,937,484.60/111,813.12
  6. Step 6: Final answer
    x = 88,405.88

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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.