Home / 130,474.55-180,051.83-76,763.03

Finding the Fourth Proportional to 130,474.55, 180,051.83 and 76,763.03

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Solution

The fourth proportional to 130,474.55, 180,051.83 and 76,763.03 is: 105,931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,474.55 : 180,051.83 = 76,763.03 : x
  2. Step 2: Convert to fraction form
    130,474.55/180,051.83 = 76,763.03/x
  3. Step 3: Cross multiply
    130,474.55x = 180,051.83 × 76,763.03
  4. Step 4: Simplify right side
    130,474.55x = 13,821,323,127.59
  5. Step 5: Solve for x
    x = 13,821,323,127.59/130,474.55
  6. Step 6: Final answer
    x = 105,931.18

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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.