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Finding the Fourth Proportional to 123,030.30, 184,545.45 and 100,868.70

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Solution

The fourth proportional to 123,030.30, 184,545.45 and 100,868.70 is: 151,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030.30 : 184,545.45 = 100,868.70 : x
  2. Step 2: Convert to fraction form
    123,030.30/184,545.45 = 100,868.70/x
  3. Step 3: Cross multiply
    123,030.30x = 184,545.45 × 100,868.70
  4. Step 4: Simplify right side
    123,030.30x = 18,614,859,632.42
  5. Step 5: Solve for x
    x = 18,614,859,632.42/123,030.30
  6. Step 6: Final answer
    x = 151,303.05

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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.