Home / 153,579.17-230,069.86-86,817.35

Finding the Fourth Proportional to 153,579.17, 230,069.86 and 86,817.35

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Solution

The fourth proportional to 153,579.17, 230,069.86 and 86,817.35 is: 130,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,579.17 : 230,069.86 = 86,817.35 : x
  2. Step 2: Convert to fraction form
    153,579.17/230,069.86 = 86,817.35/x
  3. Step 3: Cross multiply
    153,579.17x = 230,069.86 × 86,817.35
  4. Step 4: Simplify right side
    153,579.17x = 19,974,055,560.07
  5. Step 5: Solve for x
    x = 19,974,055,560.07/153,579.17
  6. Step 6: Final answer
    x = 130,057.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.