Home / 133,085.19-199,461.65-66,544.35

Finding the Fourth Proportional to 133,085.19, 199,461.65 and 66,544.35

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Solution

The fourth proportional to 133,085.19, 199,461.65 and 66,544.35 is: 99,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,085.19 : 199,461.65 = 66,544.35 : x
  2. Step 2: Convert to fraction form
    133,085.19/199,461.65 = 66,544.35/x
  3. Step 3: Cross multiply
    133,085.19x = 199,461.65 × 66,544.35
  4. Step 4: Simplify right side
    133,085.19x = 13,273,045,516.46
  5. Step 5: Solve for x
    x = 13,273,045,516.46/133,085.19
  6. Step 6: Final answer
    x = 99,733.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.