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Finding the Fourth Proportional to 158,735.88, 219,053.52 and 87,116.76

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Solution

The fourth proportional to 158,735.88, 219,053.52 and 87,116.76 is: 120,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,735.88 : 219,053.52 = 87,116.76 : x
  2. Step 2: Convert to fraction form
    158,735.88/219,053.52 = 87,116.76/x
  3. Step 3: Cross multiply
    158,735.88x = 219,053.52 × 87,116.76
  4. Step 4: Simplify right side
    158,735.88x = 19,083,232,929.00
  5. Step 5: Solve for x
    x = 19,083,232,929.00/158,735.88
  6. Step 6: Final answer
    x = 120,220.03

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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.