Home / 142,816.02-197,083.08-79,153.26

Finding the Fourth Proportional to 142,816.02, 197,083.08 and 79,153.26

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Solution

The fourth proportional to 142,816.02, 197,083.08 and 79,153.26 is: 109,229.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,816.02 : 197,083.08 = 79,153.26 : x
  2. Step 2: Convert to fraction form
    142,816.02/197,083.08 = 79,153.26/x
  3. Step 3: Cross multiply
    142,816.02x = 197,083.08 × 79,153.26
  4. Step 4: Simplify right side
    142,816.02x = 15,599,768,272.84
  5. Step 5: Solve for x
    x = 15,599,768,272.84/142,816.02
  6. Step 6: Final answer
    x = 109,229.82

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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.