Home / 215,426.70-323,140.05-122,114.70

Finding the Fourth Proportional to 215,426.70, 323,140.05 and 122,114.70

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Solution

The fourth proportional to 215,426.70, 323,140.05 and 122,114.70 is: 183,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,426.70 : 323,140.05 = 122,114.70 : x
  2. Step 2: Convert to fraction form
    215,426.70/323,140.05 = 122,114.70/x
  3. Step 3: Cross multiply
    215,426.70x = 323,140.05 × 122,114.70
  4. Step 4: Simplify right side
    215,426.70x = 39,460,150,263.74
  5. Step 5: Solve for x
    x = 39,460,150,263.74/215,426.70
  6. Step 6: Final answer
    x = 183,172.05

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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.