Home / 130,488.64-180,032.22-76,786.85

Finding the Fourth Proportional to 130,488.64, 180,032.22 and 76,786.85

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Solution

The fourth proportional to 130,488.64, 180,032.22 and 76,786.85 is: 105,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,488.64 : 180,032.22 = 76,786.85 : x
  2. Step 2: Convert to fraction form
    130,488.64/180,032.22 = 76,786.85/x
  3. Step 3: Cross multiply
    130,488.64x = 180,032.22 × 76,786.85
  4. Step 4: Simplify right side
    130,488.64x = 13,824,107,522.39
  5. Step 5: Solve for x
    x = 13,824,107,522.39/130,488.64
  6. Step 6: Final answer
    x = 105,941.08

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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.