Home / 103,406.13-155,109.86-56,633.49

Finding the Fourth Proportional to 103,406.13, 155,109.86 and 56,633.49

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Solution

The fourth proportional to 103,406.13, 155,109.86 and 56,633.49 is: 84,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,406.13 : 155,109.86 = 56,633.49 : x
  2. Step 2: Convert to fraction form
    103,406.13/155,109.86 = 56,633.49/x
  3. Step 3: Cross multiply
    103,406.13x = 155,109.86 × 56,633.49
  4. Step 4: Simplify right side
    103,406.13x = 8,784,412,705.21
  5. Step 5: Solve for x
    x = 8,784,412,705.21/103,406.13
  6. Step 6: Final answer
    x = 84,950.60

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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.