Home / 136,969.42-189,075.96-83,271.58

Finding the Fourth Proportional to 136,969.42, 189,075.96 and 83,271.58

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Solution

The fourth proportional to 136,969.42, 189,075.96 and 83,271.58 is: 114,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,969.42 : 189,075.96 = 83,271.58 : x
  2. Step 2: Convert to fraction form
    136,969.42/189,075.96 = 83,271.58/x
  3. Step 3: Cross multiply
    136,969.42x = 189,075.96 × 83,271.58
  4. Step 4: Simplify right side
    136,969.42x = 15,744,653,929.22
  5. Step 5: Solve for x
    x = 15,744,653,929.22/136,969.42
  6. Step 6: Final answer
    x = 114,950.14

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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.