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Finding the Fourth Proportional to 124,812.40, 187,219.40 and 49,938.80

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Solution

The fourth proportional to 124,812.40, 187,219.40 and 49,938.80 is: 74,908.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,812.40 : 187,219.40 = 49,938.80 : x
  2. Step 2: Convert to fraction form
    124,812.40/187,219.40 = 49,938.80/x
  3. Step 3: Cross multiply
    124,812.40x = 187,219.40 × 49,938.80
  4. Step 4: Simplify right side
    124,812.40x = 9,349,512,172.72
  5. Step 5: Solve for x
    x = 9,349,512,172.72/124,812.40
  6. Step 6: Final answer
    x = 74,908.52

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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.