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Finding the Fourth Proportional to 147,637.50, 203,750.70 and 83,995.80

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Solution

The fourth proportional to 147,637.50, 203,750.70 and 83,995.80 is: 115,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,637.50 : 203,750.70 = 83,995.80 : x
  2. Step 2: Convert to fraction form
    147,637.50/203,750.70 = 83,995.80/x
  3. Step 3: Cross multiply
    147,637.50x = 203,750.70 × 83,995.80
  4. Step 4: Simplify right side
    147,637.50x = 17,114,203,047.06
  5. Step 5: Solve for x
    x = 17,114,203,047.06/147,637.50
  6. Step 6: Final answer
    x = 115,920.43

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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.