Home / 117,307.17-162,017.46-79,515.81

Finding the Fourth Proportional to 117,307.17, 162,017.46 and 79,515.81

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Solution

The fourth proportional to 117,307.17, 162,017.46 and 79,515.81 is: 109,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,307.17 : 162,017.46 = 79,515.81 : x
  2. Step 2: Convert to fraction form
    117,307.17/162,017.46 = 79,515.81/x
  3. Step 3: Cross multiply
    117,307.17x = 162,017.46 × 79,515.81
  4. Step 4: Simplify right side
    117,307.17x = 12,882,949,566.04
  5. Step 5: Solve for x
    x = 12,882,949,566.04/117,307.17
  6. Step 6: Final answer
    x = 109,822.35

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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.