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Finding the Fourth Proportional to 146,390.76, 202,019.40 and 79,322.76

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Solution

The fourth proportional to 146,390.76, 202,019.40 and 79,322.76 is: 109,465.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,390.76 : 202,019.40 = 79,322.76 : x
  2. Step 2: Convert to fraction form
    146,390.76/202,019.40 = 79,322.76/x
  3. Step 3: Cross multiply
    146,390.76x = 202,019.40 × 79,322.76
  4. Step 4: Simplify right side
    146,390.76x = 16,024,736,381.54
  5. Step 5: Solve for x
    x = 16,024,736,381.54/146,390.76
  6. Step 6: Final answer
    x = 109,465.49

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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.