Home / 213,136.51-294,126.79-117,643.18

Finding the Fourth Proportional to 213,136.51, 294,126.79 and 117,643.18

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Solution

The fourth proportional to 213,136.51, 294,126.79 and 117,643.18 is: 162,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,136.51 : 294,126.79 = 117,643.18 : x
  2. Step 2: Convert to fraction form
    213,136.51/294,126.79 = 117,643.18/x
  3. Step 3: Cross multiply
    213,136.51x = 294,126.79 × 117,643.18
  4. Step 4: Simplify right side
    213,136.51x = 34,602,010,898.79
  5. Step 5: Solve for x
    x = 34,602,010,898.79/213,136.51
  6. Step 6: Final answer
    x = 162,346.71

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1.5x scale

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.