Home / 130,459.44-180,030.78-73,101.12

Finding the Fourth Proportional to 130,459.44, 180,030.78 and 73,101.12

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Solution

The fourth proportional to 130,459.44, 180,030.78 and 73,101.12 is: 100,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,459.44 : 180,030.78 = 73,101.12 : x
  2. Step 2: Convert to fraction form
    130,459.44/180,030.78 = 73,101.12/x
  3. Step 3: Cross multiply
    130,459.44x = 180,030.78 × 73,101.12
  4. Step 4: Simplify right side
    130,459.44x = 13,160,451,652.47
  5. Step 5: Solve for x
    x = 13,160,451,652.47/130,459.44
  6. Step 6: Final answer
    x = 100,877.73

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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.