Home / 260,087.10-390,130.63-73,098.60

Finding the Fourth Proportional to 260,087.10, 390,130.63 and 73,098.60

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Solution

The fourth proportional to 260,087.10, 390,130.63 and 73,098.60 is: 109,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,087.10 : 390,130.63 = 73,098.60 : x
  2. Step 2: Convert to fraction form
    260,087.10/390,130.63 = 73,098.60/x
  3. Step 3: Cross multiply
    260,087.10x = 390,130.63 × 73,098.60
  4. Step 4: Simplify right side
    260,087.10x = 28,518,002,687.37
  5. Step 5: Solve for x
    x = 28,518,002,687.37/260,087.10
  6. Step 6: Final answer
    x = 109,647.89

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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.