Home / 158,273.34-218,416.63-90,290.19

Finding the Fourth Proportional to 158,273.34, 218,416.63 and 90,290.19

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Solution

The fourth proportional to 158,273.34, 218,416.63 and 90,290.19 is: 124,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,273.34 : 218,416.63 = 90,290.19 : x
  2. Step 2: Convert to fraction form
    158,273.34/218,416.63 = 90,290.19/x
  3. Step 3: Cross multiply
    158,273.34x = 218,416.63 × 90,290.19
  4. Step 4: Simplify right side
    158,273.34x = 19,720,879,021.86
  5. Step 5: Solve for x
    x = 19,720,879,021.86/158,273.34
  6. Step 6: Final answer
    x = 124,600.13

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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.