Home / 103,394.61-142,677.99-58,071.42

Finding the Fourth Proportional to 103,394.61, 142,677.99 and 58,071.42

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Solution

The fourth proportional to 103,394.61, 142,677.99 and 58,071.42 is: 80,134.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,394.61 : 142,677.99 = 58,071.42 : x
  2. Step 2: Convert to fraction form
    103,394.61/142,677.99 = 58,071.42/x
  3. Step 3: Cross multiply
    103,394.61x = 142,677.99 × 58,071.42
  4. Step 4: Simplify right side
    103,394.61x = 8,285,513,482.05
  5. Step 5: Solve for x
    x = 8,285,513,482.05/103,394.61
  6. Step 6: Final answer
    x = 80,134.87

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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.