Home / 112,270.72-154,929.60-61,969.60

Finding the Fourth Proportional to 112,270.72, 154,929.60 and 61,969.60

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Solution

The fourth proportional to 112,270.72, 154,929.60 and 61,969.60 is: 85,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,270.72 : 154,929.60 = 61,969.60 : x
  2. Step 2: Convert to fraction form
    112,270.72/154,929.60 = 61,969.60/x
  3. Step 3: Cross multiply
    112,270.72x = 154,929.60 × 61,969.60
  4. Step 4: Simplify right side
    112,270.72x = 9,600,925,340.16
  5. Step 5: Solve for x
    x = 9,600,925,340.16/112,270.72
  6. Step 6: Final answer
    x = 85,515.84

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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.