Home / 130,495.64-180,080.92-76,784.14

Finding the Fourth Proportional to 130,495.64, 180,080.92 and 76,784.14

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Solution

The fourth proportional to 130,495.64, 180,080.92 and 76,784.14 is: 105,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,495.64 : 180,080.92 = 76,784.14 : x
  2. Step 2: Convert to fraction form
    130,495.64/180,080.92 = 76,784.14/x
  3. Step 3: Cross multiply
    130,495.64x = 180,080.92 × 76,784.14
  4. Step 4: Simplify right side
    130,495.64x = 13,827,357,880.73
  5. Step 5: Solve for x
    x = 13,827,357,880.73/130,495.64
  6. Step 6: Final answer
    x = 105,960.30

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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.