Home / 142,020.02-195,999.35-81,602.33

Finding the Fourth Proportional to 142,020.02, 195,999.35 and 81,602.33

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Solution

The fourth proportional to 142,020.02, 195,999.35 and 81,602.33 is: 112,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,020.02 : 195,999.35 = 81,602.33 : x
  2. Step 2: Convert to fraction form
    142,020.02/195,999.35 = 81,602.33/x
  3. Step 3: Cross multiply
    142,020.02x = 195,999.35 × 81,602.33
  4. Step 4: Simplify right side
    142,020.02x = 15,994,002,250.48
  5. Step 5: Solve for x
    x = 15,994,002,250.48/142,020.02
  6. Step 6: Final answer
    x = 112,617.94

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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.