Home / 158,807.63-219,156.36-87,186.11

Finding the Fourth Proportional to 158,807.63, 219,156.36 and 87,186.11

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Solution

The fourth proportional to 158,807.63, 219,156.36 and 87,186.11 is: 120,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,807.63 : 219,156.36 = 87,186.11 : x
  2. Step 2: Convert to fraction form
    158,807.63/219,156.36 = 87,186.11/x
  3. Step 3: Cross multiply
    158,807.63x = 219,156.36 × 87,186.11
  4. Step 4: Simplify right side
    158,807.63x = 19,107,391,058.05
  5. Step 5: Solve for x
    x = 19,107,391,058.05/158,807.63
  6. Step 6: Final answer
    x = 120,317.84

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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.