Home / 131,630.45-181,649.81-71,200.91

Finding the Fourth Proportional to 131,630.45, 181,649.81 and 71,200.91

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Solution

The fourth proportional to 131,630.45, 181,649.81 and 71,200.91 is: 98,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,630.45 : 181,649.81 = 71,200.91 : x
  2. Step 2: Convert to fraction form
    131,630.45/181,649.81 = 71,200.91/x
  3. Step 3: Cross multiply
    131,630.45x = 181,649.81 × 71,200.91
  4. Step 4: Simplify right side
    131,630.45x = 12,933,630,509.07
  5. Step 5: Solve for x
    x = 12,933,630,509.07/131,630.45
  6. Step 6: Final answer
    x = 98,257.14

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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.