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Finding the Fourth Proportional to 147,254.40, 202,910.40 and 121,852.80

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Solution

The fourth proportional to 147,254.40, 202,910.40 and 121,852.80 is: 167,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,254.40 : 202,910.40 = 121,852.80 : x
  2. Step 2: Convert to fraction form
    147,254.40/202,910.40 = 121,852.80/x
  3. Step 3: Cross multiply
    147,254.40x = 202,910.40 × 121,852.80
  4. Step 4: Simplify right side
    147,254.40x = 24,725,200,389.12
  5. Step 5: Solve for x
    x = 24,725,200,389.12/147,254.40
  6. Step 6: Final answer
    x = 167,908.06

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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.