Home / 154,795.29-213,619.91-86,827.35

Finding the Fourth Proportional to 154,795.29, 213,619.91 and 86,827.35

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Solution

The fourth proportional to 154,795.29, 213,619.91 and 86,827.35 is: 119,823.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,795.29 : 213,619.91 = 86,827.35 : x
  2. Step 2: Convert to fraction form
    154,795.29/213,619.91 = 86,827.35/x
  3. Step 3: Cross multiply
    154,795.29x = 213,619.91 × 86,827.35
  4. Step 4: Simplify right side
    154,795.29x = 18,548,050,258.40
  5. Step 5: Solve for x
    x = 18,548,050,258.40/154,795.29
  6. Step 6: Final answer
    x = 119,823.09

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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.