Home / 128,446.74-192,599.37-39,675.60

Finding the Fourth Proportional to 128,446.74, 192,599.37 and 39,675.60

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Solution

The fourth proportional to 128,446.74, 192,599.37 and 39,675.60 is: 59,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,446.74 : 192,599.37 = 39,675.60 : x
  2. Step 2: Convert to fraction form
    128,446.74/192,599.37 = 39,675.60/x
  3. Step 3: Cross multiply
    128,446.74x = 192,599.37 × 39,675.60
  4. Step 4: Simplify right side
    128,446.74x = 7,641,495,564.37
  5. Step 5: Solve for x
    x = 7,641,495,564.37/128,446.74
  6. Step 6: Final answer
    x = 59,491.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.