Home / 145,254.76-200,456.44-80,726.72

Finding the Fourth Proportional to 145,254.76, 200,456.44 and 80,726.72

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Solution

The fourth proportional to 145,254.76, 200,456.44 and 80,726.72 is: 111,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,254.76 : 200,456.44 = 80,726.72 : x
  2. Step 2: Convert to fraction form
    145,254.76/200,456.44 = 80,726.72/x
  3. Step 3: Cross multiply
    145,254.76x = 200,456.44 × 80,726.72
  4. Step 4: Simplify right side
    145,254.76x = 16,182,190,904.08
  5. Step 5: Solve for x
    x = 16,182,190,904.08/145,254.76
  6. Step 6: Final answer
    x = 111,405.58

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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.