Home / 130,403.28-180,066.84-82,741.20

Finding the Fourth Proportional to 130,403.28, 180,066.84 and 82,741.20

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Solution

The fourth proportional to 130,403.28, 180,066.84 and 82,741.20 is: 114,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,403.28 : 180,066.84 = 82,741.20 : x
  2. Step 2: Convert to fraction form
    130,403.28/180,066.84 = 82,741.20/x
  3. Step 3: Cross multiply
    130,403.28x = 180,066.84 × 82,741.20
  4. Step 4: Simplify right side
    130,403.28x = 14,898,946,421.81
  5. Step 5: Solve for x
    x = 14,898,946,421.81/130,403.28
  6. Step 6: Final answer
    x = 114,252.85

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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.