Home / 112,466.91-155,254.29-85,610.55

Finding the Fourth Proportional to 112,466.91, 155,254.29 and 85,610.55

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Solution

The fourth proportional to 112,466.91, 155,254.29 and 85,610.55 is: 118,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,466.91 : 155,254.29 = 85,610.55 : x
  2. Step 2: Convert to fraction form
    112,466.91/155,254.29 = 85,610.55/x
  3. Step 3: Cross multiply
    112,466.91x = 155,254.29 × 85,610.55
  4. Step 4: Simplify right side
    112,466.91x = 13,291,405,156.76
  5. Step 5: Solve for x
    x = 13,291,405,156.76/112,466.91
  6. Step 6: Final answer
    x = 118,180.58

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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.