Home / 120,300.36-180,417.48-66,926.56

Finding the Fourth Proportional to 120,300.36, 180,417.48 and 66,926.56

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Solution

The fourth proportional to 120,300.36, 180,417.48 and 66,926.56 is: 100,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,300.36 : 180,417.48 = 66,926.56 : x
  2. Step 2: Convert to fraction form
    120,300.36/180,417.48 = 66,926.56/x
  3. Step 3: Cross multiply
    120,300.36x = 180,417.48 × 66,926.56
  4. Step 4: Simplify right side
    120,300.36x = 12,074,721,300.27
  5. Step 5: Solve for x
    x = 12,074,721,300.27/120,300.36
  6. Step 6: Final answer
    x = 100,371.45

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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.