Home / 158,313.03-218,492.73-90,314.34

Finding the Fourth Proportional to 158,313.03, 218,492.73 and 90,314.34

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Solution

The fourth proportional to 158,313.03, 218,492.73 and 90,314.34 is: 124,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,313.03 : 218,492.73 = 90,314.34 : x
  2. Step 2: Convert to fraction form
    158,313.03/218,492.73 = 90,314.34/x
  3. Step 3: Cross multiply
    158,313.03x = 218,492.73 × 90,314.34
  4. Step 4: Simplify right side
    158,313.03x = 19,733,026,704.75
  5. Step 5: Solve for x
    x = 19,733,026,704.75/158,313.03
  6. Step 6: Final answer
    x = 124,645.63

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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.