Home / 154,142.92-212,714.52-86,161.24

Finding the Fourth Proportional to 154,142.92, 212,714.52 and 86,161.24

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Solution

The fourth proportional to 154,142.92, 212,714.52 and 86,161.24 is: 118,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,142.92 : 212,714.52 = 86,161.24 : x
  2. Step 2: Convert to fraction form
    154,142.92/212,714.52 = 86,161.24/x
  3. Step 3: Cross multiply
    154,142.92x = 212,714.52 × 86,161.24
  4. Step 4: Simplify right side
    154,142.92x = 18,327,746,809.20
  5. Step 5: Solve for x
    x = 18,327,746,809.20/154,142.92
  6. Step 6: Final answer
    x = 118,901.00

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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.