Home / 131,642.96-181,666.74-71,213.45

Finding the Fourth Proportional to 131,642.96, 181,666.74 and 71,213.45

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Solution

The fourth proportional to 131,642.96, 181,666.74 and 71,213.45 is: 98,274.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,642.96 : 181,666.74 = 71,213.45 : x
  2. Step 2: Convert to fraction form
    131,642.96/181,666.74 = 71,213.45/x
  3. Step 3: Cross multiply
    131,642.96x = 181,666.74 × 71,213.45
  4. Step 4: Simplify right side
    131,642.96x = 12,937,115,696.46
  5. Step 5: Solve for x
    x = 12,937,115,696.46/131,642.96
  6. Step 6: Final answer
    x = 98,274.27

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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.