Home / 130,693.26-180,328.88-76,958.66

Finding the Fourth Proportional to 130,693.26, 180,328.88 and 76,958.66

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Solution

The fourth proportional to 130,693.26, 180,328.88 and 76,958.66 is: 106,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,693.26 : 180,328.88 = 76,958.66 : x
  2. Step 2: Convert to fraction form
    130,693.26/180,328.88 = 76,958.66/x
  3. Step 3: Cross multiply
    130,693.26x = 180,328.88 × 76,958.66
  4. Step 4: Simplify right side
    130,693.26x = 13,877,868,964.10
  5. Step 5: Solve for x
    x = 13,877,868,964.10/130,693.26
  6. Step 6: Final answer
    x = 106,186.57

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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.