Home / 121,258.10-181,973.55-51,187.70

Finding the Fourth Proportional to 121,258.10, 181,973.55 and 51,187.70

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Solution

The fourth proportional to 121,258.10, 181,973.55 and 51,187.70 is: 76,818.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,258.10 : 181,973.55 = 51,187.70 : x
  2. Step 2: Convert to fraction form
    121,258.10/181,973.55 = 51,187.70/x
  3. Step 3: Cross multiply
    121,258.10x = 181,973.55 × 51,187.70
  4. Step 4: Simplify right side
    121,258.10x = 9,314,807,485.34
  5. Step 5: Solve for x
    x = 9,314,807,485.34/121,258.10
  6. Step 6: Final answer
    x = 76,818.02

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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.