Home / 158,272.34-218,415.24-90,289.19

Finding the Fourth Proportional to 158,272.34, 218,415.24 and 90,289.19

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Solution

The fourth proportional to 158,272.34, 218,415.24 and 90,289.19 is: 124,598.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,272.34 : 218,415.24 = 90,289.19 : x
  2. Step 2: Convert to fraction form
    158,272.34/218,415.24 = 90,289.19/x
  3. Step 3: Cross multiply
    158,272.34x = 218,415.24 × 90,289.19
  4. Step 4: Simplify right side
    158,272.34x = 19,720,535,649.29
  5. Step 5: Solve for x
    x = 19,720,535,649.29/158,272.34
  6. Step 6: Final answer
    x = 124,598.75

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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.