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Finding the Fourth Proportional to 145,276.92, 200,018.70 and 123,970.68

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Solution

The fourth proportional to 145,276.92, 200,018.70 and 123,970.68 is: 170,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,276.92 : 200,018.70 = 123,970.68 : x
  2. Step 2: Convert to fraction form
    145,276.92/200,018.70 = 123,970.68/x
  3. Step 3: Cross multiply
    145,276.92x = 200,018.70 × 123,970.68
  4. Step 4: Simplify right side
    145,276.92x = 24,796,454,251.72
  5. Step 5: Solve for x
    x = 24,796,454,251.72/145,276.92
  6. Step 6: Final answer
    x = 170,684.06

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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.