Home / 120,646.02-180,911.42-70,741.32

Finding the Fourth Proportional to 120,646.02, 180,911.42 and 70,741.32

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Solution

The fourth proportional to 120,646.02, 180,911.42 and 70,741.32 is: 106,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,646.02 : 180,911.42 = 70,741.32 : x
  2. Step 2: Convert to fraction form
    120,646.02/180,911.42 = 70,741.32/x
  3. Step 3: Cross multiply
    120,646.02x = 180,911.42 × 70,741.32
  4. Step 4: Simplify right side
    120,646.02x = 12,797,912,300.17
  5. Step 5: Solve for x
    x = 12,797,912,300.17/120,646.02
  6. Step 6: Final answer
    x = 106,078.20

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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.