Home / 150,211.08-207,315.43-85,701.36

Finding the Fourth Proportional to 150,211.08, 207,315.43 and 85,701.36

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Solution

The fourth proportional to 150,211.08, 207,315.43 and 85,701.36 is: 118,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,211.08 : 207,315.43 = 85,701.36 : x
  2. Step 2: Convert to fraction form
    150,211.08/207,315.43 = 85,701.36/x
  3. Step 3: Cross multiply
    150,211.08x = 207,315.43 × 85,701.36
  4. Step 4: Simplify right side
    150,211.08x = 17,767,214,407.11
  5. Step 5: Solve for x
    x = 17,767,214,407.11/150,211.08
  6. Step 6: Final answer
    x = 118,281.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.