Home / 158,692.36-218,997.48-87,071.08

Finding the Fourth Proportional to 158,692.36, 218,997.48 and 87,071.08

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Solution

The fourth proportional to 158,692.36, 218,997.48 and 87,071.08 is: 120,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,692.36 : 218,997.48 = 87,071.08 : x
  2. Step 2: Convert to fraction form
    158,692.36/218,997.48 = 87,071.08/x
  3. Step 3: Cross multiply
    158,692.36x = 218,997.48 × 87,071.08
  4. Step 4: Simplify right side
    158,692.36x = 19,068,347,100.88
  5. Step 5: Solve for x
    x = 19,068,347,100.88/158,692.36
  6. Step 6: Final answer
    x = 120,159.20

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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.