Home / 213,136.65-294,186.53-122,501.90

Finding the Fourth Proportional to 213,136.65, 294,186.53 and 122,501.90

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Solution

The fourth proportional to 213,136.65, 294,186.53 and 122,501.90 is: 169,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,136.65 : 294,186.53 = 122,501.90 : x
  2. Step 2: Convert to fraction form
    213,136.65/294,186.53 = 122,501.90/x
  3. Step 3: Cross multiply
    213,136.65x = 294,186.53 × 122,501.90
  4. Step 4: Simplify right side
    213,136.65x = 36,038,409,921.13
  5. Step 5: Solve for x
    x = 36,038,409,921.13/213,136.65
  6. Step 6: Final answer
    x = 169,085.94

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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.