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Finding the Fourth Proportional to 160,112.98, 240,319.95 and 81,283.78

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Solution

The fourth proportional to 160,112.98, 240,319.95 and 81,283.78 is: 122,002.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,112.98 : 240,319.95 = 81,283.78 : x
  2. Step 2: Convert to fraction form
    160,112.98/240,319.95 = 81,283.78/x
  3. Step 3: Cross multiply
    160,112.98x = 240,319.95 × 81,283.78
  4. Step 4: Simplify right side
    160,112.98x = 19,534,113,945.41
  5. Step 5: Solve for x
    x = 19,534,113,945.41/160,112.98
  6. Step 6: Final answer
    x = 122,002.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.