Home / 100,390.36-150,598.62-30,276.76

Finding the Fourth Proportional to 100,390.36, 150,598.62 and 30,276.76

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Solution

The fourth proportional to 100,390.36, 150,598.62 and 30,276.76 is: 45,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,390.36 : 150,598.62 = 30,276.76 : x
  2. Step 2: Convert to fraction form
    100,390.36/150,598.62 = 30,276.76/x
  3. Step 3: Cross multiply
    100,390.36x = 150,598.62 × 30,276.76
  4. Step 4: Simplify right side
    100,390.36x = 4,559,638,274.07
  5. Step 5: Solve for x
    x = 4,559,638,274.07/100,390.36
  6. Step 6: Final answer
    x = 45,419.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.