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Finding the Fourth Proportional to 108,860.81, 150,219.62 and 61,104.93

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Solution

The fourth proportional to 108,860.81, 150,219.62 and 61,104.93 is: 84,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,860.81 : 150,219.62 = 61,104.93 : x
  2. Step 2: Convert to fraction form
    108,860.81/150,219.62 = 61,104.93/x
  3. Step 3: Cross multiply
    108,860.81x = 150,219.62 × 61,104.93
  4. Step 4: Simplify right side
    108,860.81x = 9,179,159,364.73
  5. Step 5: Solve for x
    x = 9,179,159,364.73/108,860.81
  6. Step 6: Final answer
    x = 84,320.15

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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.