Home / 192,478.40-265,615.32-107,603.36

Finding the Fourth Proportional to 192,478.40, 265,615.32 and 107,603.36

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Solution

The fourth proportional to 192,478.40, 265,615.32 and 107,603.36 is: 148,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,478.40 : 265,615.32 = 107,603.36 : x
  2. Step 2: Convert to fraction form
    192,478.40/265,615.32 = 107,603.36/x
  3. Step 3: Cross multiply
    192,478.40x = 265,615.32 × 107,603.36
  4. Step 4: Simplify right side
    192,478.40x = 28,581,100,899.48
  5. Step 5: Solve for x
    x = 28,581,100,899.48/192,478.40
  6. Step 6: Final answer
    x = 148,489.91

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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.