Home / 130,458.60-180,037.32-73,100.32

Finding the Fourth Proportional to 130,458.60, 180,037.32 and 73,100.32

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Solution

The fourth proportional to 130,458.60, 180,037.32 and 73,100.32 is: 100,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,458.60 : 180,037.32 = 73,100.32 : x
  2. Step 2: Convert to fraction form
    130,458.60/180,037.32 = 73,100.32/x
  3. Step 3: Cross multiply
    130,458.60x = 180,037.32 × 73,100.32
  4. Step 4: Simplify right side
    130,458.60x = 13,160,785,703.94
  5. Step 5: Solve for x
    x = 13,160,785,703.94/130,458.60
  6. Step 6: Final answer
    x = 100,880.94

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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.