Home / 112,206.80-168,083.40-69,957.20

Finding the Fourth Proportional to 112,206.80, 168,083.40 and 69,957.20

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Solution

The fourth proportional to 112,206.80, 168,083.40 and 69,957.20 is: 104,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,206.80 : 168,083.40 = 69,957.20 : x
  2. Step 2: Convert to fraction form
    112,206.80/168,083.40 = 69,957.20/x
  3. Step 3: Cross multiply
    112,206.80x = 168,083.40 × 69,957.20
  4. Step 4: Simplify right side
    112,206.80x = 11,758,644,030.48
  5. Step 5: Solve for x
    x = 11,758,644,030.48/112,206.80
  6. Step 6: Final answer
    x = 104,794.40

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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.