Home / 130,995.47-180,771.28-82,587.59

Finding the Fourth Proportional to 130,995.47, 180,771.28 and 82,587.59

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Solution

The fourth proportional to 130,995.47, 180,771.28 and 82,587.59 is: 113,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,995.47 : 180,771.28 = 82,587.59 : x
  2. Step 2: Convert to fraction form
    130,995.47/180,771.28 = 82,587.59/x
  3. Step 3: Cross multiply
    130,995.47x = 180,771.28 × 82,587.59
  4. Step 4: Simplify right side
    130,995.47x = 14,929,464,356.42
  5. Step 5: Solve for x
    x = 14,929,464,356.42/130,995.47
  6. Step 6: Final answer
    x = 113,969.32

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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.