Home / 130,662.47-180,290.51-87,704.32

Finding the Fourth Proportional to 130,662.47, 180,290.51 and 87,704.32

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Solution

The fourth proportional to 130,662.47, 180,290.51 and 87,704.32 is: 121,016.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,662.47 : 180,290.51 = 87,704.32 : x
  2. Step 2: Convert to fraction form
    130,662.47/180,290.51 = 87,704.32/x
  3. Step 3: Cross multiply
    130,662.47x = 180,290.51 × 87,704.32
  4. Step 4: Simplify right side
    130,662.47x = 15,812,256,359.69
  5. Step 5: Solve for x
    x = 15,812,256,359.69/130,662.47
  6. Step 6: Final answer
    x = 121,016.06

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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.