Home / 125,935.40-188,903.10-69,948.20

Finding the Fourth Proportional to 125,935.40, 188,903.10 and 69,948.20

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Solution

The fourth proportional to 125,935.40, 188,903.10 and 69,948.20 is: 104,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,935.40 : 188,903.10 = 69,948.20 : x
  2. Step 2: Convert to fraction form
    125,935.40/188,903.10 = 69,948.20/x
  3. Step 3: Cross multiply
    125,935.40x = 188,903.10 × 69,948.20
  4. Step 4: Simplify right side
    125,935.40x = 13,213,431,819.42
  5. Step 5: Solve for x
    x = 13,213,431,819.42/125,935.40
  6. Step 6: Final answer
    x = 104,922.30

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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.