Home / 104,423.81-144,105-56,677.16

Finding the Fourth Proportional to 104,423.81, 144,105 and 56,677.16

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Solution

The fourth proportional to 104,423.81, 144,105 and 56,677.16 is: 78,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,423.81 : 144,105 = 56,677.16 : x
  2. Step 2: Convert to fraction form
    104,423.81/144,105 = 56,677.16/x
  3. Step 3: Cross multiply
    104,423.81x = 144,105 × 56,677.16
  4. Step 4: Simplify right side
    104,423.81x = 8,167,462,141.80
  5. Step 5: Solve for x
    x = 8,167,462,141.80/104,423.81
  6. Step 6: Final answer
    x = 78,214.56

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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.