Home / 143,771.06-198,399.48-90,085.07

Finding the Fourth Proportional to 143,771.06, 198,399.48 and 90,085.07

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Solution

The fourth proportional to 143,771.06, 198,399.48 and 90,085.07 is: 124,314.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,771.06 : 198,399.48 = 90,085.07 : x
  2. Step 2: Convert to fraction form
    143,771.06/198,399.48 = 90,085.07/x
  3. Step 3: Cross multiply
    143,771.06x = 198,399.48 × 90,085.07
  4. Step 4: Simplify right side
    143,771.06x = 17,872,830,051.77
  5. Step 5: Solve for x
    x = 17,872,830,051.77/143,771.06
  6. Step 6: Final answer
    x = 124,314.52

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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.