Home / 130,475.87-180,053.64-76,764.35

Finding the Fourth Proportional to 130,475.87, 180,053.64 and 76,764.35

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Solution

The fourth proportional to 130,475.87, 180,053.64 and 76,764.35 is: 105,933.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,475.87 : 180,053.64 = 76,764.35 : x
  2. Step 2: Convert to fraction form
    130,475.87/180,053.64 = 76,764.35/x
  3. Step 3: Cross multiply
    130,475.87x = 180,053.64 × 76,764.35
  4. Step 4: Simplify right side
    130,475.87x = 13,821,699,739.47
  5. Step 5: Solve for x
    x = 13,821,699,739.47/130,475.87
  6. Step 6: Final answer
    x = 105,933.00

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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.