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Finding the Fourth Proportional to 125,430.84, 188,080.02 and 55,276.92

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Solution

The fourth proportional to 125,430.84, 188,080.02 and 55,276.92 is: 82,886.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,430.84 : 188,080.02 = 55,276.92 : x
  2. Step 2: Convert to fraction form
    125,430.84/188,080.02 = 55,276.92/x
  3. Step 3: Cross multiply
    125,430.84x = 188,080.02 × 55,276.92
  4. Step 4: Simplify right side
    125,430.84x = 10,396,484,219.14
  5. Step 5: Solve for x
    x = 10,396,484,219.14/125,430.84
  6. Step 6: Final answer
    x = 82,886.19

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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.