Home / 112,878.73-155,779.64-62,577.73

Finding the Fourth Proportional to 112,878.73, 155,779.64 and 62,577.73

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Solution

The fourth proportional to 112,878.73, 155,779.64 and 62,577.73 is: 86,361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,878.73 : 155,779.64 = 62,577.73 : x
  2. Step 2: Convert to fraction form
    112,878.73/155,779.64 = 62,577.73/x
  3. Step 3: Cross multiply
    112,878.73x = 155,779.64 × 62,577.73
  4. Step 4: Simplify right side
    112,878.73x = 9,748,336,251.42
  5. Step 5: Solve for x
    x = 9,748,336,251.42/112,878.73
  6. Step 6: Final answer
    x = 86,361.14

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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.