Home / 219,130.55-328,696.80-69,371.59

Finding the Fourth Proportional to 219,130.55, 328,696.80 and 69,371.59

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Solution

The fourth proportional to 219,130.55, 328,696.80 and 69,371.59 is: 104,057.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,130.55 : 328,696.80 = 69,371.59 : x
  2. Step 2: Convert to fraction form
    219,130.55/328,696.80 = 69,371.59/x
  3. Step 3: Cross multiply
    219,130.55x = 328,696.80 × 69,371.59
  4. Step 4: Simplify right side
    219,130.55x = 22,802,219,643.91
  5. Step 5: Solve for x
    x = 22,802,219,643.91/219,130.55
  6. Step 6: Final answer
    x = 104,057.69

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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.