Home / 104,678.40-144,462.09-56,930.79

Finding the Fourth Proportional to 104,678.40, 144,462.09 and 56,930.79

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Solution

The fourth proportional to 104,678.40, 144,462.09 and 56,930.79 is: 78,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,678.40 : 144,462.09 = 56,930.79 : x
  2. Step 2: Convert to fraction form
    104,678.40/144,462.09 = 56,930.79/x
  3. Step 3: Cross multiply
    104,678.40x = 144,462.09 × 56,930.79
  4. Step 4: Simplify right side
    104,678.40x = 8,224,340,908.75
  5. Step 5: Solve for x
    x = 8,224,340,908.75/104,678.40
  6. Step 6: Final answer
    x = 78,567.70

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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.