Home / 130,639.25-180,289.26-73,296.72

Finding the Fourth Proportional to 130,639.25, 180,289.26 and 73,296.72

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Solution

The fourth proportional to 130,639.25, 180,289.26 and 73,296.72 is: 101,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,639.25 : 180,289.26 = 73,296.72 : x
  2. Step 2: Convert to fraction form
    130,639.25/180,289.26 = 73,296.72/x
  3. Step 3: Cross multiply
    130,639.25x = 180,289.26 × 73,296.72
  4. Step 4: Simplify right side
    130,639.25x = 13,214,611,409.23
  5. Step 5: Solve for x
    x = 13,214,611,409.23/130,639.25
  6. Step 6: Final answer
    x = 101,153.45

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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.