Home / 117,475.76-162,124.58-66,488.56

Finding the Fourth Proportional to 117,475.76, 162,124.58 and 66,488.56

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Solution

The fourth proportional to 117,475.76, 162,124.58 and 66,488.56 is: 91,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,475.76 : 162,124.58 = 66,488.56 : x
  2. Step 2: Convert to fraction form
    117,475.76/162,124.58 = 66,488.56/x
  3. Step 3: Cross multiply
    117,475.76x = 162,124.58 × 66,488.56
  4. Step 4: Simplify right side
    117,475.76x = 10,779,429,864.80
  5. Step 5: Solve for x
    x = 10,779,429,864.80/117,475.76
  6. Step 6: Final answer
    x = 91,758.76

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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.