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Finding the Fourth Proportional to 103,663.99, 143,054.52 and 58,341.91

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Solution

The fourth proportional to 103,663.99, 143,054.52 and 58,341.91 is: 80,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,663.99 : 143,054.52 = 58,341.91 : x
  2. Step 2: Convert to fraction form
    103,663.99/143,054.52 = 58,341.91/x
  3. Step 3: Cross multiply
    103,663.99x = 143,054.52 × 58,341.91
  4. Step 4: Simplify right side
    103,663.99x = 8,346,073,930.93
  5. Step 5: Solve for x
    x = 8,346,073,930.93/103,663.99
  6. Step 6: Final answer
    x = 80,510.83

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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.