Home / 131,095.71-180,916.07-77,426.73

Finding the Fourth Proportional to 131,095.71, 180,916.07 and 77,426.73

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Solution

The fourth proportional to 131,095.71, 180,916.07 and 77,426.73 is: 106,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,095.71 : 180,916.07 = 77,426.73 : x
  2. Step 2: Convert to fraction form
    131,095.71/180,916.07 = 77,426.73/x
  3. Step 3: Cross multiply
    131,095.71x = 180,916.07 × 77,426.73
  4. Step 4: Simplify right side
    131,095.71x = 14,007,739,317.42
  5. Step 5: Solve for x
    x = 14,007,739,317.42/131,095.71
  6. Step 6: Final answer
    x = 106,851.24

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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.