Home / 112,537.80-168,579.90-70,288.20

Finding the Fourth Proportional to 112,537.80, 168,579.90 and 70,288.20

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Solution

The fourth proportional to 112,537.80, 168,579.90 and 70,288.20 is: 105,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,537.80 : 168,579.90 = 70,288.20 : x
  2. Step 2: Convert to fraction form
    112,537.80/168,579.90 = 70,288.20/x
  3. Step 3: Cross multiply
    112,537.80x = 168,579.90 × 70,288.20
  4. Step 4: Simplify right side
    112,537.80x = 11,849,177,727.18
  5. Step 5: Solve for x
    x = 11,849,177,727.18/112,537.80
  6. Step 6: Final answer
    x = 105,290.65

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1.5x scale

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.