Home / 104,530.61-144,253.79-56,784.89

Finding the Fourth Proportional to 104,530.61, 144,253.79 and 56,784.89

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Solution

The fourth proportional to 104,530.61, 144,253.79 and 56,784.89 is: 78,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,530.61 : 144,253.79 = 56,784.89 : x
  2. Step 2: Convert to fraction form
    104,530.61/144,253.79 = 56,784.89/x
  3. Step 3: Cross multiply
    104,530.61x = 144,253.79 × 56,784.89
  4. Step 4: Simplify right side
    104,530.61x = 8,191,435,597.23
  5. Step 5: Solve for x
    x = 8,191,435,597.23/104,530.61
  6. Step 6: Final answer
    x = 78,363.99

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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.