Home / 112,764.94-155,615.62-61,779.48

Finding the Fourth Proportional to 112,764.94, 155,615.62 and 61,779.48

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Solution

The fourth proportional to 112,764.94, 155,615.62 and 61,779.48 is: 85,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,764.94 : 155,615.62 = 61,779.48 : x
  2. Step 2: Convert to fraction form
    112,764.94/155,615.62 = 61,779.48/x
  3. Step 3: Cross multiply
    112,764.94x = 155,615.62 × 61,779.48
  4. Step 4: Simplify right side
    112,764.94x = 9,613,852,083.48
  5. Step 5: Solve for x
    x = 9,613,852,083.48/112,764.94
  6. Step 6: Final answer
    x = 85,255.68

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1.5x scale

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.