Home / 143,700.18-198,237.57-111,649.74

Finding the Fourth Proportional to 143,700.18, 198,237.57 and 111,649.74

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Solution

The fourth proportional to 143,700.18, 198,237.57 and 111,649.74 is: 154,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,700.18 : 198,237.57 = 111,649.74 : x
  2. Step 2: Convert to fraction form
    143,700.18/198,237.57 = 111,649.74/x
  3. Step 3: Cross multiply
    143,700.18x = 198,237.57 × 111,649.74
  4. Step 4: Simplify right side
    143,700.18x = 22,133,173,148.73
  5. Step 5: Solve for x
    x = 22,133,173,148.73/143,700.18
  6. Step 6: Final answer
    x = 154,023.28

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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.