Home / 131,013.60-180,769.88-83,337.00

Finding the Fourth Proportional to 131,013.60, 180,769.88 and 83,337.00

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Solution

The fourth proportional to 131,013.60, 180,769.88 and 83,337.00 is: 114,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,013.60 : 180,769.88 = 83,337.00 : x
  2. Step 2: Convert to fraction form
    131,013.60/180,769.88 = 83,337.00/x
  3. Step 3: Cross multiply
    131,013.60x = 180,769.88 × 83,337.00
  4. Step 4: Simplify right side
    131,013.60x = 15,064,819,568.08
  5. Step 5: Solve for x
    x = 15,064,819,568.08/131,013.60
  6. Step 6: Final answer
    x = 114,986.68

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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.