Home / 130,733.16-180,351.84-76,992.45

Finding the Fourth Proportional to 130,733.16, 180,351.84 and 76,992.45

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Solution

The fourth proportional to 130,733.16, 180,351.84 and 76,992.45 is: 106,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,733.16 : 180,351.84 = 76,992.45 : x
  2. Step 2: Convert to fraction form
    130,733.16/180,351.84 = 76,992.45/x
  3. Step 3: Cross multiply
    130,733.16x = 180,351.84 × 76,992.45
  4. Step 4: Simplify right side
    130,733.16x = 13,885,730,023.61
  5. Step 5: Solve for x
    x = 13,885,730,023.61/130,733.16
  6. Step 6: Final answer
    x = 106,214.29

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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.