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Finding the Fourth Proportional to 159,348.95, 219,893.19 and 87,714.98

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Solution

The fourth proportional to 159,348.95, 219,893.19 and 87,714.98 is: 121,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,348.95 : 219,893.19 = 87,714.98 : x
  2. Step 2: Convert to fraction form
    159,348.95/219,893.19 = 87,714.98/x
  3. Step 3: Cross multiply
    159,348.95x = 219,893.19 × 87,714.98
  4. Step 4: Simplify right side
    159,348.95x = 19,287,925,663.52
  5. Step 5: Solve for x
    x = 19,287,925,663.52/159,348.95
  6. Step 6: Final answer
    x = 121,042.07

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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.