Home / 119,351.18-164,729.76-75,715.40

Finding the Fourth Proportional to 119,351.18, 164,729.76 and 75,715.40

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Solution

The fourth proportional to 119,351.18, 164,729.76 and 75,715.40 is: 104,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,351.18 : 164,729.76 = 75,715.40 : x
  2. Step 2: Convert to fraction form
    119,351.18/164,729.76 = 75,715.40/x
  3. Step 3: Cross multiply
    119,351.18x = 164,729.76 × 75,715.40
  4. Step 4: Simplify right side
    119,351.18x = 12,472,579,670.30
  5. Step 5: Solve for x
    x = 12,472,579,670.30/119,351.18
  6. Step 6: Final answer
    x = 104,503.20

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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.