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Finding the Fourth Proportional to 158,881.56, 219,267.30 and 87,262.32

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Solution

The fourth proportional to 158,881.56, 219,267.30 and 87,262.32 is: 120,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,881.56 : 219,267.30 = 87,262.32 : x
  2. Step 2: Convert to fraction form
    158,881.56/219,267.30 = 87,262.32/x
  3. Step 3: Cross multiply
    158,881.56x = 219,267.30 × 87,262.32
  4. Step 4: Simplify right side
    158,881.56x = 19,133,773,298.14
  5. Step 5: Solve for x
    x = 19,133,773,298.14/158,881.56
  6. Step 6: Final answer
    x = 120,427.90

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1.5x scale

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.