Home / 162,312.10-223,986.40-90,692.71

Finding the Fourth Proportional to 162,312.10, 223,986.40 and 90,692.71

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Solution

The fourth proportional to 162,312.10, 223,986.40 and 90,692.71 is: 125,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,312.10 : 223,986.40 = 90,692.71 : x
  2. Step 2: Convert to fraction form
    162,312.10/223,986.40 = 90,692.71/x
  3. Step 3: Cross multiply
    162,312.10x = 223,986.40 × 90,692.71
  4. Step 4: Simplify right side
    162,312.10x = 20,313,932,832.45
  5. Step 5: Solve for x
    x = 20,313,932,832.45/162,312.10
  6. Step 6: Final answer
    x = 125,153.54

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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.