Home / 154,694.83-213,430.93-86,702.37

Finding the Fourth Proportional to 154,694.83, 213,430.93 and 86,702.37

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Solution

The fourth proportional to 154,694.83, 213,430.93 and 86,702.37 is: 119,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,694.83 : 213,430.93 = 86,702.37 : x
  2. Step 2: Convert to fraction form
    154,694.83/213,430.93 = 86,702.37/x
  3. Step 3: Cross multiply
    154,694.83x = 213,430.93 × 86,702.37
  4. Step 4: Simplify right side
    154,694.83x = 18,504,967,462.30
  5. Step 5: Solve for x
    x = 18,504,967,462.30/154,694.83
  6. Step 6: Final answer
    x = 119,622.40

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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.