Home / 152,721.74-210,767.58-84,751.61

Finding the Fourth Proportional to 152,721.74, 210,767.58 and 84,751.61

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Solution

The fourth proportional to 152,721.74, 210,767.58 and 84,751.61 is: 116,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,721.74 : 210,767.58 = 84,751.61 : x
  2. Step 2: Convert to fraction form
    152,721.74/210,767.58 = 84,751.61/x
  3. Step 3: Cross multiply
    152,721.74x = 210,767.58 × 84,751.61
  4. Step 4: Simplify right side
    152,721.74x = 17,862,890,686.97
  5. Step 5: Solve for x
    x = 17,862,890,686.97/152,721.74
  6. Step 6: Final answer
    x = 116,963.64

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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.