Home / 130,937.85-180,689.67-80,036.10

Finding the Fourth Proportional to 130,937.85, 180,689.67 and 80,036.10

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Solution

The fourth proportional to 130,937.85, 180,689.67 and 80,036.10 is: 110,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,937.85 : 180,689.67 = 80,036.10 : x
  2. Step 2: Convert to fraction form
    130,937.85/180,689.67 = 80,036.10/x
  3. Step 3: Cross multiply
    130,937.85x = 180,689.67 × 80,036.10
  4. Step 4: Simplify right side
    130,937.85x = 14,461,696,497.09
  5. Step 5: Solve for x
    x = 14,461,696,497.09/130,937.85
  6. Step 6: Final answer
    x = 110,447.03

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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.