Home / 103,685.08-154,457.53-100,548.86

Finding the Fourth Proportional to 103,685.08, 154,457.53 and 100,548.86

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Solution

The fourth proportional to 103,685.08, 154,457.53 and 100,548.86 is: 149,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,685.08 : 154,457.53 = 100,548.86 : x
  2. Step 2: Convert to fraction form
    103,685.08/154,457.53 = 100,548.86/x
  3. Step 3: Cross multiply
    103,685.08x = 154,457.53 × 100,548.86
  4. Step 4: Simplify right side
    103,685.08x = 15,530,528,559.92
  5. Step 5: Solve for x
    x = 15,530,528,559.92/103,685.08
  6. Step 6: Final answer
    x = 149,785.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.