Home / 130,464.64-180,041.92-76,751.68

Finding the Fourth Proportional to 130,464.64, 180,041.92 and 76,751.68

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Solution

The fourth proportional to 130,464.64, 180,041.92 and 76,751.68 is: 105,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,464.64 : 180,041.92 = 76,751.68 : x
  2. Step 2: Convert to fraction form
    130,464.64/180,041.92 = 76,751.68/x
  3. Step 3: Cross multiply
    130,464.64x = 180,041.92 × 76,751.68
  4. Step 4: Simplify right side
    130,464.64x = 13,818,519,830.43
  5. Step 5: Solve for x
    x = 13,818,519,830.43/130,464.64
  6. Step 6: Final answer
    x = 105,917.74

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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.