Home / 112,384.69-168,660.23-53,220.49

Finding the Fourth Proportional to 112,384.69, 168,660.23 and 53,220.49

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Solution

The fourth proportional to 112,384.69, 168,660.23 and 53,220.49 is: 79,870.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,384.69 : 168,660.23 = 53,220.49 : x
  2. Step 2: Convert to fraction form
    112,384.69/168,660.23 = 53,220.49/x
  3. Step 3: Cross multiply
    112,384.69x = 168,660.23 × 53,220.49
  4. Step 4: Simplify right side
    112,384.69x = 8,976,180,345.07
  5. Step 5: Solve for x
    x = 8,976,180,345.07/112,384.69
  6. Step 6: Final answer
    x = 79,870.13

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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.