Home / 130,639.88-180,290.14-73,297.34

Finding the Fourth Proportional to 130,639.88, 180,290.14 and 73,297.34

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Solution

The fourth proportional to 130,639.88, 180,290.14 and 73,297.34 is: 101,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,639.88 : 180,290.14 = 73,297.34 : x
  2. Step 2: Convert to fraction form
    130,639.88/180,290.14 = 73,297.34/x
  3. Step 3: Cross multiply
    130,639.88x = 180,290.14 × 73,297.34
  4. Step 4: Simplify right side
    130,639.88x = 13,214,787,690.23
  5. Step 5: Solve for x
    x = 13,214,787,690.23/130,639.88
  6. Step 6: Final answer
    x = 101,154.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.