Home / 143,139.34-197,442.93-92,219.50

Finding the Fourth Proportional to 143,139.34, 197,442.93 and 92,219.50

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Solution

The fourth proportional to 143,139.34, 197,442.93 and 92,219.50 is: 127,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139.34 : 197,442.93 = 92,219.50 : x
  2. Step 2: Convert to fraction form
    143,139.34/197,442.93 = 92,219.50/x
  3. Step 3: Cross multiply
    143,139.34x = 197,442.93 × 92,219.50
  4. Step 4: Simplify right side
    143,139.34x = 18,208,088,283.14
  5. Step 5: Solve for x
    x = 18,208,088,283.14/143,139.34
  6. Step 6: Final answer
    x = 127,205.34

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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.