Home / 130,498.40-180,100.43-73,147.46

Finding the Fourth Proportional to 130,498.40, 180,100.43 and 73,147.46

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Solution

The fourth proportional to 130,498.40, 180,100.43 and 73,147.46 is: 100,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,498.40 : 180,100.43 = 73,147.46 : x
  2. Step 2: Convert to fraction form
    130,498.40/180,100.43 = 73,147.46/x
  3. Step 3: Cross multiply
    130,498.40x = 180,100.43 × 73,147.46
  4. Step 4: Simplify right side
    130,498.40x = 13,173,888,633.67
  5. Step 5: Solve for x
    x = 13,173,888,633.67/130,498.40
  6. Step 6: Final answer
    x = 100,950.58

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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.