Home / 147,212.64-203,192.28-90,671.40

Finding the Fourth Proportional to 147,212.64, 203,192.28 and 90,671.40

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Solution

The fourth proportional to 147,212.64, 203,192.28 and 90,671.40 is: 125,150.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,212.64 : 203,192.28 = 90,671.40 : x
  2. Step 2: Convert to fraction form
    147,212.64/203,192.28 = 90,671.40/x
  3. Step 3: Cross multiply
    147,212.64x = 203,192.28 × 90,671.40
  4. Step 4: Simplify right side
    147,212.64x = 18,423,728,496.79
  5. Step 5: Solve for x
    x = 18,423,728,496.79/147,212.64
  6. Step 6: Final answer
    x = 125,150.45

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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.