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Finding the Fourth Proportional to 158,804.76, 219,153.92 and 87,184.56

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Solution

The fourth proportional to 158,804.76, 219,153.92 and 87,184.56 is: 120,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,804.76 : 219,153.92 = 87,184.56 : x
  2. Step 2: Convert to fraction form
    158,804.76/219,153.92 = 87,184.56/x
  3. Step 3: Cross multiply
    158,804.76x = 219,153.92 × 87,184.56
  4. Step 4: Simplify right side
    158,804.76x = 19,106,838,087.48
  5. Step 5: Solve for x
    x = 19,106,838,087.48/158,804.76
  6. Step 6: Final answer
    x = 120,316.53

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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.