Home / 213,429.07-294,669.53-136,981.09

Finding the Fourth Proportional to 213,429.07, 294,669.53 and 136,981.09

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Solution

The fourth proportional to 213,429.07, 294,669.53 and 136,981.09 is: 189,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,429.07 : 294,669.53 = 136,981.09 : x
  2. Step 2: Convert to fraction form
    213,429.07/294,669.53 = 136,981.09/x
  3. Step 3: Cross multiply
    213,429.07x = 294,669.53 × 136,981.09
  4. Step 4: Simplify right side
    213,429.07x = 40,364,153,409.19
  5. Step 5: Solve for x
    x = 40,364,153,409.19/213,429.07
  6. Step 6: Final answer
    x = 189,122.10

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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.