Home / 125,913.40-188,870.10-69,926.20

Finding the Fourth Proportional to 125,913.40, 188,870.10 and 69,926.20

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Solution

The fourth proportional to 125,913.40, 188,870.10 and 69,926.20 is: 104,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,913.40 : 188,870.10 = 69,926.20 : x
  2. Step 2: Convert to fraction form
    125,913.40/188,870.10 = 69,926.20/x
  3. Step 3: Cross multiply
    125,913.40x = 188,870.10 × 69,926.20
  4. Step 4: Simplify right side
    125,913.40x = 13,206,968,386.62
  5. Step 5: Solve for x
    x = 13,206,968,386.62/125,913.40
  6. Step 6: Final answer
    x = 104,889.30

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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.