Home / 130,289.64-179,776.32-76,585.50

Finding the Fourth Proportional to 130,289.64, 179,776.32 and 76,585.50

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Solution

The fourth proportional to 130,289.64, 179,776.32 and 76,585.50 is: 105,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,289.64 : 179,776.32 = 76,585.50 : x
  2. Step 2: Convert to fraction form
    130,289.64/179,776.32 = 76,585.50/x
  3. Step 3: Cross multiply
    130,289.64x = 179,776.32 × 76,585.50
  4. Step 4: Simplify right side
    130,289.64x = 13,768,259,355.36
  5. Step 5: Solve for x
    x = 13,768,259,355.36/130,289.64
  6. Step 6: Final answer
    x = 105,674.25

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1.5x scale

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.