Home / 148,317.90-204,672.79-87,055.76

Finding the Fourth Proportional to 148,317.90, 204,672.79 and 87,055.76

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Solution

The fourth proportional to 148,317.90, 204,672.79 and 87,055.76 is: 120,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,317.90 : 204,672.79 = 87,055.76 : x
  2. Step 2: Convert to fraction form
    148,317.90/204,672.79 = 87,055.76/x
  3. Step 3: Cross multiply
    148,317.90x = 204,672.79 × 87,055.76
  4. Step 4: Simplify right side
    148,317.90x = 17,817,944,242.81
  5. Step 5: Solve for x
    x = 17,817,944,242.81/148,317.90
  6. Step 6: Final answer
    x = 120,133.47

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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.