Home / 260,101.48-390,152.22-73,112.98

Finding the Fourth Proportional to 260,101.48, 390,152.22 and 73,112.98

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Solution

The fourth proportional to 260,101.48, 390,152.22 and 73,112.98 is: 109,669.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,101.48 : 390,152.22 = 73,112.98 : x
  2. Step 2: Convert to fraction form
    260,101.48/390,152.22 = 73,112.98/x
  3. Step 3: Cross multiply
    260,101.48x = 390,152.22 × 73,112.98
  4. Step 4: Simplify right side
    260,101.48x = 28,525,189,141.49
  5. Step 5: Solve for x
    x = 28,525,189,141.49/260,101.48
  6. Step 6: Final answer
    x = 109,669.46

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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.