Home / 142,851.27-197,154.83-88,420.90

Finding the Fourth Proportional to 142,851.27, 197,154.83 and 88,420.90

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Solution

The fourth proportional to 142,851.27, 197,154.83 and 88,420.90 is: 122,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,851.27 : 197,154.83 = 88,420.90 : x
  2. Step 2: Convert to fraction form
    142,851.27/197,154.83 = 88,420.90/x
  3. Step 3: Cross multiply
    142,851.27x = 197,154.83 × 88,420.90
  4. Step 4: Simplify right side
    142,851.27x = 17,432,607,236.11
  5. Step 5: Solve for x
    x = 17,432,607,236.11/142,851.27
  6. Step 6: Final answer
    x = 122,033.27

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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.