Home / 130,811.26-180,554.06-77,132.04

Finding the Fourth Proportional to 130,811.26, 180,554.06 and 77,132.04

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Solution

The fourth proportional to 130,811.26, 180,554.06 and 77,132.04 is: 106,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,811.26 : 180,554.06 = 77,132.04 : x
  2. Step 2: Convert to fraction form
    130,811.26/180,554.06 = 77,132.04/x
  3. Step 3: Cross multiply
    130,811.26x = 180,554.06 × 77,132.04
  4. Step 4: Simplify right side
    130,811.26x = 13,926,502,978.08
  5. Step 5: Solve for x
    x = 13,926,502,978.08/130,811.26
  6. Step 6: Final answer
    x = 106,462.57

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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.