Home / 130,528.22-180,125.44-76,816.40

Finding the Fourth Proportional to 130,528.22, 180,125.44 and 76,816.40

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Solution

The fourth proportional to 130,528.22, 180,125.44 and 76,816.40 is: 106,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,528.22 : 180,125.44 = 76,816.40 : x
  2. Step 2: Convert to fraction form
    130,528.22/180,125.44 = 76,816.40/x
  3. Step 3: Cross multiply
    130,528.22x = 180,125.44 × 76,816.40
  4. Step 4: Simplify right side
    130,528.22x = 13,836,586,756.55
  5. Step 5: Solve for x
    x = 13,836,586,756.55/130,528.22
  6. Step 6: Final answer
    x = 106,004.57

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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.