Home / 142,024.02-196,004.87-81,606.33

Finding the Fourth Proportional to 142,024.02, 196,004.87 and 81,606.33

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Solution

The fourth proportional to 142,024.02, 196,004.87 and 81,606.33 is: 112,623.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,024.02 : 196,004.87 = 81,606.33 : x
  2. Step 2: Convert to fraction form
    142,024.02/196,004.87 = 81,606.33/x
  3. Step 3: Cross multiply
    142,024.02x = 196,004.87 × 81,606.33
  4. Step 4: Simplify right side
    142,024.02x = 15,995,238,102.83
  5. Step 5: Solve for x
    x = 15,995,238,102.83/142,024.02
  6. Step 6: Final answer
    x = 112,623.47

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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.