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Finding the Fourth Proportional to 155,912.68, 233,810.40 and 123,020.20

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Solution

The fourth proportional to 155,912.68, 233,810.40 and 123,020.20 is: 184,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,912.68 : 233,810.40 = 123,020.20 : x
  2. Step 2: Convert to fraction form
    155,912.68/233,810.40 = 123,020.20/x
  3. Step 3: Cross multiply
    155,912.68x = 233,810.40 × 123,020.20
  4. Step 4: Simplify right side
    155,912.68x = 28,763,402,170.08
  5. Step 5: Solve for x
    x = 28,763,402,170.08/155,912.68
  6. Step 6: Final answer
    x = 184,484.05

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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.