Home / 102,417.21-153,653.69-31,338.27

Finding the Fourth Proportional to 102,417.21, 153,653.69 and 31,338.27

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Solution

The fourth proportional to 102,417.21, 153,653.69 and 31,338.27 is: 47,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,417.21 : 153,653.69 = 31,338.27 : x
  2. Step 2: Convert to fraction form
    102,417.21/153,653.69 = 31,338.27/x
  3. Step 3: Cross multiply
    102,417.21x = 153,653.69 × 31,338.27
  4. Step 4: Simplify right side
    102,417.21x = 4,815,240,823.72
  5. Step 5: Solve for x
    x = 4,815,240,823.72/102,417.21
  6. Step 6: Final answer
    x = 47,015.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.