Home / 131,410.77-181,353.57-80,407.50

Finding the Fourth Proportional to 131,410.77, 181,353.57 and 80,407.50

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Solution

The fourth proportional to 131,410.77, 181,353.57 and 80,407.50 is: 110,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,410.77 : 181,353.57 = 80,407.50 : x
  2. Step 2: Convert to fraction form
    131,410.77/181,353.57 = 80,407.50/x
  3. Step 3: Cross multiply
    131,410.77x = 181,353.57 × 80,407.50
  4. Step 4: Simplify right side
    131,410.77x = 14,582,186,198.17
  5. Step 5: Solve for x
    x = 14,582,186,198.17/131,410.77
  6. Step 6: Final answer
    x = 110,966.45

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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.