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Finding the Fourth Proportional to 104,718.99, 144,508.07 and 56,971.32

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Solution

The fourth proportional to 104,718.99, 144,508.07 and 56,971.32 is: 78,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,718.99 : 144,508.07 = 56,971.32 : x
  2. Step 2: Convert to fraction form
    104,718.99/144,508.07 = 56,971.32/x
  3. Step 3: Cross multiply
    104,718.99x = 144,508.07 × 56,971.32
  4. Step 4: Simplify right side
    104,718.99x = 8,232,814,778.61
  5. Step 5: Solve for x
    x = 8,232,814,778.61/104,718.99
  6. Step 6: Final answer
    x = 78,618.16

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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.