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Finding the Fourth Proportional to 152,691.64, 210,714.12 and 84,718.94

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Solution

The fourth proportional to 152,691.64, 210,714.12 and 84,718.94 is: 116,911.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,691.64 : 210,714.12 = 84,718.94 : x
  2. Step 2: Convert to fraction form
    152,691.64/210,714.12 = 84,718.94/x
  3. Step 3: Cross multiply
    152,691.64x = 210,714.12 × 84,718.94
  4. Step 4: Simplify right side
    152,691.64x = 17,851,476,889.43
  5. Step 5: Solve for x
    x = 17,851,476,889.43/152,691.64
  6. Step 6: Final answer
    x = 116,911.95

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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.