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Finding the Fourth Proportional to 125,477.70, 188,216.55 and 115,368.90

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Solution

The fourth proportional to 125,477.70, 188,216.55 and 115,368.90 is: 173,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,477.70 : 188,216.55 = 115,368.90 : x
  2. Step 2: Convert to fraction form
    125,477.70/188,216.55 = 115,368.90/x
  3. Step 3: Cross multiply
    125,477.70x = 188,216.55 × 115,368.90
  4. Step 4: Simplify right side
    125,477.70x = 21,714,336,335.30
  5. Step 5: Solve for x
    x = 21,714,336,335.30/125,477.70
  6. Step 6: Final answer
    x = 173,053.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.