Home / 154,370.04-213,064.20-90,727.80

Finding the Fourth Proportional to 154,370.04, 213,064.20 and 90,727.80

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Solution

The fourth proportional to 154,370.04, 213,064.20 and 90,727.80 is: 125,224.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,370.04 : 213,064.20 = 90,727.80 : x
  2. Step 2: Convert to fraction form
    154,370.04/213,064.20 = 90,727.80/x
  3. Step 3: Cross multiply
    154,370.04x = 213,064.20 × 90,727.80
  4. Step 4: Simplify right side
    154,370.04x = 19,330,846,124.76
  5. Step 5: Solve for x
    x = 19,330,846,124.76/154,370.04
  6. Step 6: Final answer
    x = 125,224.08

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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.