Home / 213,136.48-294,128.60-117,643.17

Finding the Fourth Proportional to 213,136.48, 294,128.60 and 117,643.17

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Solution

The fourth proportional to 213,136.48, 294,128.60 and 117,643.17 is: 162,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,136.48 : 294,128.60 = 117,643.17 : x
  2. Step 2: Convert to fraction form
    213,136.48/294,128.60 = 117,643.17/x
  3. Step 3: Cross multiply
    213,136.48x = 294,128.60 × 117,643.17
  4. Step 4: Simplify right side
    213,136.48x = 34,602,222,150.86
  5. Step 5: Solve for x
    x = 34,602,222,150.86/213,136.48
  6. Step 6: Final answer
    x = 162,347.72

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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.