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Finding the Fourth Proportional to 104,162.81, 143,744.88 and 56,416.20

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Solution

The fourth proportional to 104,162.81, 143,744.88 and 56,416.20 is: 77,854.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,162.81 : 143,744.88 = 56,416.20 : x
  2. Step 2: Convert to fraction form
    104,162.81/143,744.88 = 56,416.20/x
  3. Step 3: Cross multiply
    104,162.81x = 143,744.88 × 56,416.20
  4. Step 4: Simplify right side
    104,162.81x = 8,109,539,254.23
  5. Step 5: Solve for x
    x = 8,109,539,254.23/104,162.81
  6. Step 6: Final answer
    x = 77,854.46

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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.