Home / 112,985.08-155,919.54-62,684.04

Finding the Fourth Proportional to 112,985.08, 155,919.54 and 62,684.04

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Solution

The fourth proportional to 112,985.08, 155,919.54 and 62,684.04 is: 86,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,985.08 : 155,919.54 = 62,684.04 : x
  2. Step 2: Convert to fraction form
    112,985.08/155,919.54 = 62,684.04/x
  3. Step 3: Cross multiply
    112,985.08x = 155,919.54 × 62,684.04
  4. Step 4: Simplify right side
    112,985.08x = 9,773,666,682.14
  5. Step 5: Solve for x
    x = 9,773,666,682.14/112,985.08
  6. Step 6: Final answer
    x = 86,504.05

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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.