Home / 148,590.12-205,068.51-84,915.57

Finding the Fourth Proportional to 148,590.12, 205,068.51 and 84,915.57

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Solution

The fourth proportional to 148,590.12, 205,068.51 and 84,915.57 is: 117,191.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,590.12 : 205,068.51 = 84,915.57 : x
  2. Step 2: Convert to fraction form
    148,590.12/205,068.51 = 84,915.57/x
  3. Step 3: Cross multiply
    148,590.12x = 205,068.51 × 84,915.57
  4. Step 4: Simplify right side
    148,590.12x = 17,413,509,415.70
  5. Step 5: Solve for x
    x = 17,413,509,415.70/148,590.12
  6. Step 6: Final answer
    x = 117,191.57

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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.