Home / 210,399.04-315,601.26-70,157.62

Finding the Fourth Proportional to 210,399.04, 315,601.26 and 70,157.62

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Solution

The fourth proportional to 210,399.04, 315,601.26 and 70,157.62 is: 105,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,399.04 : 315,601.26 = 70,157.62 : x
  2. Step 2: Convert to fraction form
    210,399.04/315,601.26 = 70,157.62/x
  3. Step 3: Cross multiply
    210,399.04x = 315,601.26 × 70,157.62
  4. Step 4: Simplify right side
    210,399.04x = 22,141,833,270.60
  5. Step 5: Solve for x
    x = 22,141,833,270.60/210,399.04
  6. Step 6: Final answer
    x = 105,237.33

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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.