Home / 130,497.90-180,099.74-73,146.96

Finding the Fourth Proportional to 130,497.90, 180,099.74 and 73,146.96

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Solution

The fourth proportional to 130,497.90, 180,099.74 and 73,146.96 is: 100,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,497.90 : 180,099.74 = 73,146.96 : x
  2. Step 2: Convert to fraction form
    130,497.90/180,099.74 = 73,146.96/x
  3. Step 3: Cross multiply
    130,497.90x = 180,099.74 × 73,146.96
  4. Step 4: Simplify right side
    130,497.90x = 13,173,748,249.21
  5. Step 5: Solve for x
    x = 13,173,748,249.21/130,497.90
  6. Step 6: Final answer
    x = 100,949.89

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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.