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Finding the Fourth Proportional to 153,330.54, 211,598.54 and 85,348.26

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Solution

The fourth proportional to 153,330.54, 211,598.54 and 85,348.26 is: 117,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,330.54 : 211,598.54 = 85,348.26 : x
  2. Step 2: Convert to fraction form
    153,330.54/211,598.54 = 85,348.26/x
  3. Step 3: Cross multiply
    153,330.54x = 211,598.54 × 85,348.26
  4. Step 4: Simplify right side
    153,330.54x = 18,059,566,780.80
  5. Step 5: Solve for x
    x = 18,059,566,780.80/153,330.54
  6. Step 6: Final answer
    x = 117,781.93

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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.