Home / 112,577.21-168,643.89-91,541

Finding the Fourth Proportional to 112,577.21, 168,643.89 and 91,541

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Solution

The fourth proportional to 112,577.21, 168,643.89 and 91,541 is: 137,131.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,577.21 : 168,643.89 = 91,541 : x
  2. Step 2: Convert to fraction form
    112,577.21/168,643.89 = 91,541/x
  3. Step 3: Cross multiply
    112,577.21x = 168,643.89 × 91,541
  4. Step 4: Simplify right side
    112,577.21x = 15,437,830,334.49
  5. Step 5: Solve for x
    x = 15,437,830,334.49/112,577.21
  6. Step 6: Final answer
    x = 137,131.04

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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.