Home / 112,802.80-155,715.89-76,017.09

Finding the Fourth Proportional to 112,802.80, 155,715.89 and 76,017.09

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Solution

The fourth proportional to 112,802.80, 155,715.89 and 76,017.09 is: 104,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,802.80 : 155,715.89 = 76,017.09 : x
  2. Step 2: Convert to fraction form
    112,802.80/155,715.89 = 76,017.09/x
  3. Step 3: Cross multiply
    112,802.80x = 155,715.89 × 76,017.09
  4. Step 4: Simplify right side
    112,802.80x = 11,837,068,824.56
  5. Step 5: Solve for x
    x = 11,837,068,824.56/112,802.80
  6. Step 6: Final answer
    x = 104,935.95

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1.5x scale

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.