Home / 145,865.70-218,798.55-123,315.30

Finding the Fourth Proportional to 145,865.70, 218,798.55 and 123,315.30

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Solution

The fourth proportional to 145,865.70, 218,798.55 and 123,315.30 is: 184,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,865.70 : 218,798.55 = 123,315.30 : x
  2. Step 2: Convert to fraction form
    145,865.70/218,798.55 = 123,315.30/x
  3. Step 3: Cross multiply
    145,865.70x = 218,798.55 × 123,315.30
  4. Step 4: Simplify right side
    145,865.70x = 26,981,208,832.82
  5. Step 5: Solve for x
    x = 26,981,208,832.82/145,865.70
  6. Step 6: Final answer
    x = 184,972.95

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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.