Home / 119,505.90-164,915.55-65,788.86

Finding the Fourth Proportional to 119,505.90, 164,915.55 and 65,788.86

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Solution

The fourth proportional to 119,505.90, 164,915.55 and 65,788.86 is: 90,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,505.90 : 164,915.55 = 65,788.86 : x
  2. Step 2: Convert to fraction form
    119,505.90/164,915.55 = 65,788.86/x
  3. Step 3: Cross multiply
    119,505.90x = 164,915.55 × 65,788.86
  4. Step 4: Simplify right side
    119,505.90x = 10,849,606,030.77
  5. Step 5: Solve for x
    x = 10,849,606,030.77/119,505.90
  6. Step 6: Final answer
    x = 90,787.20

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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.