Home / 158,085.24-218,164.62-91,038.84

Finding the Fourth Proportional to 158,085.24, 218,164.62 and 91,038.84

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Solution

The fourth proportional to 158,085.24, 218,164.62 and 91,038.84 is: 125,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,085.24 : 218,164.62 = 91,038.84 : x
  2. Step 2: Convert to fraction form
    158,085.24/218,164.62 = 91,038.84/x
  3. Step 3: Cross multiply
    158,085.24x = 218,164.62 × 91,038.84
  4. Step 4: Simplify right side
    158,085.24x = 19,861,453,933.84
  5. Step 5: Solve for x
    x = 19,861,453,933.84/158,085.24
  6. Step 6: Final answer
    x = 125,637.62

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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.