Home / 130,662.02-180,390.88-82,305.40

Finding the Fourth Proportional to 130,662.02, 180,390.88 and 82,305.40

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Solution

The fourth proportional to 130,662.02, 180,390.88 and 82,305.40 is: 113,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,662.02 : 180,390.88 = 82,305.40 : x
  2. Step 2: Convert to fraction form
    130,662.02/180,390.88 = 82,305.40/x
  3. Step 3: Cross multiply
    130,662.02x = 180,390.88 × 82,305.40
  4. Step 4: Simplify right side
    130,662.02x = 14,847,142,221.27
  5. Step 5: Solve for x
    x = 14,847,142,221.27/130,662.02
  6. Step 6: Final answer
    x = 113,630.13

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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.