Home / 140,129.06-210,281.06-102,107.66

Finding the Fourth Proportional to 140,129.06, 210,281.06 and 102,107.66

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Solution

The fourth proportional to 140,129.06, 210,281.06 and 102,107.66 is: 153,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,129.06 : 210,281.06 = 102,107.66 : x
  2. Step 2: Convert to fraction form
    140,129.06/210,281.06 = 102,107.66/x
  3. Step 3: Cross multiply
    140,129.06x = 210,281.06 × 102,107.66
  4. Step 4: Simplify right side
    140,129.06x = 21,471,306,182.78
  5. Step 5: Solve for x
    x = 21,471,306,182.78/140,129.06
  6. Step 6: Final answer
    x = 153,225.23

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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.