Home / 212,510.16-293,265.09-121,869.54

Finding the Fourth Proportional to 212,510.16, 293,265.09 and 121,869.54

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Solution

The fourth proportional to 212,510.16, 293,265.09 and 121,869.54 is: 168,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,510.16 : 293,265.09 = 121,869.54 : x
  2. Step 2: Convert to fraction form
    212,510.16/293,265.09 = 121,869.54/x
  3. Step 3: Cross multiply
    212,510.16x = 293,265.09 × 121,869.54
  4. Step 4: Simplify right side
    212,510.16x = 35,740,081,616.36
  5. Step 5: Solve for x
    x = 35,740,081,616.36/212,510.16
  6. Step 6: Final answer
    x = 168,180.58

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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.