Home / 121,201.64-181,741.59-70,617.03

Finding the Fourth Proportional to 121,201.64, 181,741.59 and 70,617.03

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Solution

The fourth proportional to 121,201.64, 181,741.59 and 70,617.03 is: 105,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,201.64 : 181,741.59 = 70,617.03 : x
  2. Step 2: Convert to fraction form
    121,201.64/181,741.59 = 70,617.03/x
  3. Step 3: Cross multiply
    121,201.64x = 181,741.59 × 70,617.03
  4. Step 4: Simplify right side
    121,201.64x = 12,834,051,313.28
  5. Step 5: Solve for x
    x = 12,834,051,313.28/121,201.64
  6. Step 6: Final answer
    x = 105,890.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.