Home / 127,431.58-175,860.10-70,075.28

Finding the Fourth Proportional to 127,431.58, 175,860.10 and 70,075.28

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Solution

The fourth proportional to 127,431.58, 175,860.10 and 70,075.28 is: 96,706.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,431.58 : 175,860.10 = 70,075.28 : x
  2. Step 2: Convert to fraction form
    127,431.58/175,860.10 = 70,075.28/x
  3. Step 3: Cross multiply
    127,431.58x = 175,860.10 × 70,075.28
  4. Step 4: Simplify right side
    127,431.58x = 12,323,445,748.33
  5. Step 5: Solve for x
    x = 12,323,445,748.33/127,431.58
  6. Step 6: Final answer
    x = 96,706.37

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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.