Home / 131,419.58-181,359.08-70,990.22

Finding the Fourth Proportional to 131,419.58, 181,359.08 and 70,990.22

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Solution

The fourth proportional to 131,419.58, 181,359.08 and 70,990.22 is: 97,966.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,419.58 : 181,359.08 = 70,990.22 : x
  2. Step 2: Convert to fraction form
    131,419.58/181,359.08 = 70,990.22/x
  3. Step 3: Cross multiply
    131,419.58x = 181,359.08 × 70,990.22
  4. Step 4: Simplify right side
    131,419.58x = 12,874,720,988.20
  5. Step 5: Solve for x
    x = 12,874,720,988.20/131,419.58
  6. Step 6: Final answer
    x = 97,966.54

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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.