Home / 108,778.08-150,116.40-61,032.72

Finding the Fourth Proportional to 108,778.08, 150,116.40 and 61,032.72

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Solution

The fourth proportional to 108,778.08, 150,116.40 and 61,032.72 is: 84,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,778.08 : 150,116.40 = 61,032.72 : x
  2. Step 2: Convert to fraction form
    108,778.08/150,116.40 = 61,032.72/x
  3. Step 3: Cross multiply
    108,778.08x = 150,116.40 × 61,032.72
  4. Step 4: Simplify right side
    108,778.08x = 9,162,012,208.61
  5. Step 5: Solve for x
    x = 9,162,012,208.61/108,778.08
  6. Step 6: Final answer
    x = 84,226.64

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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.