Home / 147,285.55-203,255.40-83,624.70

Finding the Fourth Proportional to 147,285.55, 203,255.40 and 83,624.70

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Solution

The fourth proportional to 147,285.55, 203,255.40 and 83,624.70 is: 115,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,285.55 : 203,255.40 = 83,624.70 : x
  2. Step 2: Convert to fraction form
    147,285.55/203,255.40 = 83,624.70/x
  3. Step 3: Cross multiply
    147,285.55x = 203,255.40 × 83,624.70
  4. Step 4: Simplify right side
    147,285.55x = 16,997,171,848.38
  5. Step 5: Solve for x
    x = 16,997,171,848.38/147,285.55
  6. Step 6: Final answer
    x = 115,402.85

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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.