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Finding the Fourth Proportional to 127,431.60, 175,860.11 and 70,075.29

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Solution

The fourth proportional to 127,431.60, 175,860.11 and 70,075.29 is: 96,706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,431.60 : 175,860.11 = 70,075.29 : x
  2. Step 2: Convert to fraction form
    127,431.60/175,860.11 = 70,075.29/x
  3. Step 3: Cross multiply
    127,431.60x = 175,860.11 × 70,075.29
  4. Step 4: Simplify right side
    127,431.60x = 12,323,449,042.35
  5. Step 5: Solve for x
    x = 12,323,449,042.35/127,431.60
  6. Step 6: Final answer
    x = 96,706.39

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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.