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Finding the Fourth Proportional to 153,476.03, 211,793.73 and 85,492.91

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Solution

The fourth proportional to 153,476.03, 211,793.73 and 85,492.91 is: 117,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,476.03 : 211,793.73 = 85,492.91 : x
  2. Step 2: Convert to fraction form
    153,476.03/211,793.73 = 85,492.91/x
  3. Step 3: Cross multiply
    153,476.03x = 211,793.73 × 85,492.91
  4. Step 4: Simplify right side
    153,476.03x = 18,106,862,297.45
  5. Step 5: Solve for x
    x = 18,106,862,297.45/153,476.03
  6. Step 6: Final answer
    x = 117,978.44

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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.