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Finding the Fourth Proportional to 103,623.69, 143,000.69 and 58,911.69

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Solution

The fourth proportional to 103,623.69, 143,000.69 and 58,911.69 is: 81,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.69 : 143,000.69 = 58,911.69 : x
  2. Step 2: Convert to fraction form
    103,623.69/143,000.69 = 58,911.69/x
  3. Step 3: Cross multiply
    103,623.69x = 143,000.69 × 58,911.69
  4. Step 4: Simplify right side
    103,623.69x = 8,424,412,319.07
  5. Step 5: Solve for x
    x = 8,424,412,319.07/103,623.69
  6. Step 6: Final answer
    x = 81,298.13

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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.