Home / 131,750.32-181,814.21-71,319.41

Finding the Fourth Proportional to 131,750.32, 181,814.21 and 71,319.41

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Solution

The fourth proportional to 131,750.32, 181,814.21 and 71,319.41 is: 98,420.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,750.32 : 181,814.21 = 71,319.41 : x
  2. Step 2: Convert to fraction form
    131,750.32/181,814.21 = 71,319.41/x
  3. Step 3: Cross multiply
    131,750.32x = 181,814.21 × 71,319.41
  4. Step 4: Simplify right side
    131,750.32x = 12,966,882,186.82
  5. Step 5: Solve for x
    x = 12,966,882,186.82/131,750.32
  6. Step 6: Final answer
    x = 98,420.12

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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.