Home / 112,866.22-155,754.52-61,878.34

Finding the Fourth Proportional to 112,866.22, 155,754.52 and 61,878.34

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Solution

The fourth proportional to 112,866.22, 155,754.52 and 61,878.34 is: 85,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,866.22 : 155,754.52 = 61,878.34 : x
  2. Step 2: Convert to fraction form
    112,866.22/155,754.52 = 61,878.34/x
  3. Step 3: Cross multiply
    112,866.22x = 155,754.52 × 61,878.34
  4. Step 4: Simplify right side
    112,866.22x = 9,637,831,145.10
  5. Step 5: Solve for x
    x = 9,637,831,145.10/112,866.22
  6. Step 6: Final answer
    x = 85,391.64

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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.