Home / 121,189.63-181,867.49-42,303.87

Finding the Fourth Proportional to 121,189.63, 181,867.49 and 42,303.87

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Solution

The fourth proportional to 121,189.63, 181,867.49 and 42,303.87 is: 63,484.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,189.63 : 181,867.49 = 42,303.87 : x
  2. Step 2: Convert to fraction form
    121,189.63/181,867.49 = 42,303.87/x
  3. Step 3: Cross multiply
    121,189.63x = 181,867.49 × 42,303.87
  4. Step 4: Simplify right side
    121,189.63x = 7,693,698,654.19
  5. Step 5: Solve for x
    x = 7,693,698,654.19/121,189.63
  6. Step 6: Final answer
    x = 63,484.79

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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.