Home / 128,705.80-193,005.18-49,774.52

Finding the Fourth Proportional to 128,705.80, 193,005.18 and 49,774.52

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Solution

The fourth proportional to 128,705.80, 193,005.18 and 49,774.52 is: 74,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,705.80 : 193,005.18 = 49,774.52 : x
  2. Step 2: Convert to fraction form
    128,705.80/193,005.18 = 49,774.52/x
  3. Step 3: Cross multiply
    128,705.80x = 193,005.18 × 49,774.52
  4. Step 4: Simplify right side
    128,705.80x = 9,606,740,192.01
  5. Step 5: Solve for x
    x = 9,606,740,192.01/128,705.80
  6. Step 6: Final answer
    x = 74,641.08

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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.