Home / 130,449.04-180,009.48-76,736.08

Finding the Fourth Proportional to 130,449.04, 180,009.48 and 76,736.08

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Solution

The fourth proportional to 130,449.04, 180,009.48 and 76,736.08 is: 105,889.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,449.04 : 180,009.48 = 76,736.08 : x
  2. Step 2: Convert to fraction form
    130,449.04/180,009.48 = 76,736.08/x
  3. Step 3: Cross multiply
    130,449.04x = 180,009.48 × 76,736.08
  4. Step 4: Simplify right side
    130,449.04x = 13,813,221,858.04
  5. Step 5: Solve for x
    x = 13,813,221,858.04/130,449.04
  6. Step 6: Final answer
    x = 105,889.79

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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.