Home / 185,270.86-255,666.94-100,386.10

Finding the Fourth Proportional to 185,270.86, 255,666.94 and 100,386.10

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Solution

The fourth proportional to 185,270.86, 255,666.94 and 100,386.10 is: 138,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,270.86 : 255,666.94 = 100,386.10 : x
  2. Step 2: Convert to fraction form
    185,270.86/255,666.94 = 100,386.10/x
  3. Step 3: Cross multiply
    185,270.86x = 255,666.94 × 100,386.10
  4. Step 4: Simplify right side
    185,270.86x = 25,665,407,005.53
  5. Step 5: Solve for x
    x = 25,665,407,005.53/185,270.86
  6. Step 6: Final answer
    x = 138,529.11

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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.