Home / 117,421.12-176,152.74-55,090

Finding the Fourth Proportional to 117,421.12, 176,152.74 and 55,090

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Solution

The fourth proportional to 117,421.12, 176,152.74 and 55,090 is: 82,644.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,421.12 : 176,152.74 = 55,090 : x
  2. Step 2: Convert to fraction form
    117,421.12/176,152.74 = 55,090/x
  3. Step 3: Cross multiply
    117,421.12x = 176,152.74 × 55,090
  4. Step 4: Simplify right side
    117,421.12x = 9,704,254,446.60
  5. Step 5: Solve for x
    x = 9,704,254,446.60/117,421.12
  6. Step 6: Final answer
    x = 82,644.88

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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.