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Finding the Fourth Proportional to 153,832.16, 212,299.08 and 85,862.43

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Solution

The fourth proportional to 153,832.16, 212,299.08 and 85,862.43 is: 118,496.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,832.16 : 212,299.08 = 85,862.43 : x
  2. Step 2: Convert to fraction form
    153,832.16/212,299.08 = 85,862.43/x
  3. Step 3: Cross multiply
    153,832.16x = 212,299.08 × 85,862.43
  4. Step 4: Simplify right side
    153,832.16x = 18,228,514,573.58
  5. Step 5: Solve for x
    x = 18,228,514,573.58/153,832.16
  6. Step 6: Final answer
    x = 118,496.12

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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.