Home / 131,448.08-197,141.40-42,678.80

Finding the Fourth Proportional to 131,448.08, 197,141.40 and 42,678.80

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Solution

The fourth proportional to 131,448.08, 197,141.40 and 42,678.80 is: 64,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,448.08 : 197,141.40 = 42,678.80 : x
  2. Step 2: Convert to fraction form
    131,448.08/197,141.40 = 42,678.80/x
  3. Step 3: Cross multiply
    131,448.08x = 197,141.40 × 42,678.80
  4. Step 4: Simplify right side
    131,448.08x = 8,413,758,382.32
  5. Step 5: Solve for x
    x = 8,413,758,382.32/131,448.08
  6. Step 6: Final answer
    x = 64,008.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.