Home / 121,365.48-182,130.78-74,475.24

Finding the Fourth Proportional to 121,365.48, 182,130.78 and 74,475.24

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Solution

The fourth proportional to 121,365.48, 182,130.78 and 74,475.24 is: 111,763.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,365.48 : 182,130.78 = 74,475.24 : x
  2. Step 2: Convert to fraction form
    121,365.48/182,130.78 = 74,475.24/x
  3. Step 3: Cross multiply
    121,365.48x = 182,130.78 × 74,475.24
  4. Step 4: Simplify right side
    121,365.48x = 13,564,233,551.89
  5. Step 5: Solve for x
    x = 13,564,233,551.89/121,365.48
  6. Step 6: Final answer
    x = 111,763.52

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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.