Home / 151,340.10-208,849.34-87,714.80

Finding the Fourth Proportional to 151,340.10, 208,849.34 and 87,714.80

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Solution

The fourth proportional to 151,340.10, 208,849.34 and 87,714.80 is: 121,046.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,340.10 : 208,849.34 = 87,714.80 : x
  2. Step 2: Convert to fraction form
    151,340.10/208,849.34 = 87,714.80/x
  3. Step 3: Cross multiply
    151,340.10x = 208,849.34 × 87,714.80
  4. Step 4: Simplify right side
    151,340.10x = 18,319,178,088.23
  5. Step 5: Solve for x
    x = 18,319,178,088.23/151,340.10
  6. Step 6: Final answer
    x = 121,046.43

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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.