Home / 143,736.93-198,278.89-90,011.45

Finding the Fourth Proportional to 143,736.93, 198,278.89 and 90,011.45

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Solution

The fourth proportional to 143,736.93, 198,278.89 and 90,011.45 is: 124,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,736.93 : 198,278.89 = 90,011.45 : x
  2. Step 2: Convert to fraction form
    143,736.93/198,278.89 = 90,011.45/x
  3. Step 3: Cross multiply
    143,736.93x = 198,278.89 × 90,011.45
  4. Step 4: Simplify right side
    143,736.93x = 17,847,370,663.96
  5. Step 5: Solve for x
    x = 17,847,370,663.96/143,736.93
  6. Step 6: Final answer
    x = 124,166.91

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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.