Home / 185,300.06-255,714.06-100,417.12

Finding the Fourth Proportional to 185,300.06, 255,714.06 and 100,417.12

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Solution

The fourth proportional to 185,300.06, 255,714.06 and 100,417.12 is: 138,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,300.06 : 255,714.06 = 100,417.12 : x
  2. Step 2: Convert to fraction form
    185,300.06/255,714.06 = 100,417.12/x
  3. Step 3: Cross multiply
    185,300.06x = 255,714.06 × 100,417.12
  4. Step 4: Simplify right side
    185,300.06x = 25,678,069,185.99
  5. Step 5: Solve for x
    x = 25,678,069,185.99/185,300.06
  6. Step 6: Final answer
    x = 138,575.62

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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.