Home / 142,440.19-196,559.47-77,896.60

Finding the Fourth Proportional to 142,440.19, 196,559.47 and 77,896.60

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Solution

The fourth proportional to 142,440.19, 196,559.47 and 77,896.60 is: 107,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,440.19 : 196,559.47 = 77,896.60 : x
  2. Step 2: Convert to fraction form
    142,440.19/196,559.47 = 77,896.60/x
  3. Step 3: Cross multiply
    142,440.19x = 196,559.47 × 77,896.60
  4. Step 4: Simplify right side
    142,440.19x = 15,311,314,410.80
  5. Step 5: Solve for x
    x = 15,311,314,410.80/142,440.19
  6. Step 6: Final answer
    x = 107,492.94

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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.