Home / 117,941.09-176,835.69-85,931.91

Finding the Fourth Proportional to 117,941.09, 176,835.69 and 85,931.91

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Solution

The fourth proportional to 117,941.09, 176,835.69 and 85,931.91 is: 128,842.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,941.09 : 176,835.69 = 85,931.91 : x
  2. Step 2: Convert to fraction form
    117,941.09/176,835.69 = 85,931.91/x
  3. Step 3: Cross multiply
    117,941.09x = 176,835.69 × 85,931.91
  4. Step 4: Simplify right side
    117,941.09x = 15,195,828,597.87
  5. Step 5: Solve for x
    x = 15,195,828,597.87/117,941.09
  6. Step 6: Final answer
    x = 128,842.54

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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.