Home / 131,662.08-181,710.18-101,423.16

Finding the Fourth Proportional to 131,662.08, 181,710.18 and 101,423.16

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Solution

The fourth proportional to 131,662.08, 181,710.18 and 101,423.16 is: 139,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,662.08 : 181,710.18 = 101,423.16 : x
  2. Step 2: Convert to fraction form
    131,662.08/181,710.18 = 101,423.16/x
  3. Step 3: Cross multiply
    131,662.08x = 181,710.18 × 101,423.16
  4. Step 4: Simplify right side
    131,662.08x = 18,429,620,659.77
  5. Step 5: Solve for x
    x = 18,429,620,659.77/131,662.08
  6. Step 6: Final answer
    x = 139,976.68

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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.