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Finding the Fourth Proportional to 158,714.48, 219,030.80 and 87,099.12

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Solution

The fourth proportional to 158,714.48, 219,030.80 and 87,099.12 is: 120,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,714.48 : 219,030.80 = 87,099.12 : x
  2. Step 2: Convert to fraction form
    158,714.48/219,030.80 = 87,099.12/x
  3. Step 3: Cross multiply
    158,714.48x = 219,030.80 × 87,099.12
  4. Step 4: Simplify right side
    158,714.48x = 19,077,389,932.90
  5. Step 5: Solve for x
    x = 19,077,389,932.90/158,714.48
  6. Step 6: Final answer
    x = 120,199.43

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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.