Home / 145,239.94-200,437.14-80,708.93

Finding the Fourth Proportional to 145,239.94, 200,437.14 and 80,708.93

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Solution

The fourth proportional to 145,239.94, 200,437.14 and 80,708.93 is: 111,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,239.94 : 200,437.14 = 80,708.93 : x
  2. Step 2: Convert to fraction form
    145,239.94/200,437.14 = 80,708.93/x
  3. Step 3: Cross multiply
    145,239.94x = 200,437.14 × 80,708.93
  4. Step 4: Simplify right side
    145,239.94x = 16,177,068,054.24
  5. Step 5: Solve for x
    x = 16,177,068,054.24/145,239.94
  6. Step 6: Final answer
    x = 111,381.68

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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.