Home / 90,903.18-136,360.96-30,907.22

Finding the Fourth Proportional to 90,903.18, 136,360.96 and 30,907.22

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Solution

The fourth proportional to 90,903.18, 136,360.96 and 30,907.22 is: 46,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,903.18 : 136,360.96 = 30,907.22 : x
  2. Step 2: Convert to fraction form
    90,903.18/136,360.96 = 30,907.22/x
  3. Step 3: Cross multiply
    90,903.18x = 136,360.96 × 30,907.22
  4. Step 4: Simplify right side
    90,903.18x = 4,214,538,190.13
  5. Step 5: Solve for x
    x = 4,214,538,190.13/90,903.18
  6. Step 6: Final answer
    x = 46,362.93

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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.