Home / 136,995.02-189,075.16-86,015.04

Finding the Fourth Proportional to 136,995.02, 189,075.16 and 86,015.04

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Solution

The fourth proportional to 136,995.02, 189,075.16 and 86,015.04 is: 118,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,995.02 : 189,075.16 = 86,015.04 : x
  2. Step 2: Convert to fraction form
    136,995.02/189,075.16 = 86,015.04/x
  3. Step 3: Cross multiply
    136,995.02x = 189,075.16 × 86,015.04
  4. Step 4: Simplify right side
    136,995.02x = 16,263,307,450.41
  5. Step 5: Solve for x
    x = 16,263,307,450.41/136,995.02
  6. Step 6: Final answer
    x = 118,714.59

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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.