Home / 130,776.44-180,489.87-76,346.46

Finding the Fourth Proportional to 130,776.44, 180,489.87 and 76,346.46

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Solution

The fourth proportional to 130,776.44, 180,489.87 and 76,346.46 is: 105,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,776.44 : 180,489.87 = 76,346.46 : x
  2. Step 2: Convert to fraction form
    130,776.44/180,489.87 = 76,346.46/x
  3. Step 3: Cross multiply
    130,776.44x = 180,489.87 × 76,346.46
  4. Step 4: Simplify right side
    130,776.44x = 13,779,762,640.36
  5. Step 5: Solve for x
    x = 13,779,762,640.36/130,776.44
  6. Step 6: Final answer
    x = 105,368.85

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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.