Home / 216,532.14-298,814.75-121,038.78

Finding the Fourth Proportional to 216,532.14, 298,814.75 and 121,038.78

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Solution

The fourth proportional to 216,532.14, 298,814.75 and 121,038.78 is: 167,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,532.14 : 298,814.75 = 121,038.78 : x
  2. Step 2: Convert to fraction form
    216,532.14/298,814.75 = 121,038.78/x
  3. Step 3: Cross multiply
    216,532.14x = 298,814.75 × 121,038.78
  4. Step 4: Simplify right side
    216,532.14x = 36,168,172,786.01
  5. Step 5: Solve for x
    x = 36,168,172,786.01/216,532.14
  6. Step 6: Final answer
    x = 167,033.74

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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.