Home / 160,916.60-241,490.10-90,721.40

Finding the Fourth Proportional to 160,916.60, 241,490.10 and 90,721.40

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Solution

The fourth proportional to 160,916.60, 241,490.10 and 90,721.40 is: 136,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,916.60 : 241,490.10 = 90,721.40 : x
  2. Step 2: Convert to fraction form
    160,916.60/241,490.10 = 90,721.40/x
  3. Step 3: Cross multiply
    160,916.60x = 241,490.10 × 90,721.40
  4. Step 4: Simplify right side
    160,916.60x = 21,908,319,958.14
  5. Step 5: Solve for x
    x = 21,908,319,958.14/160,916.60
  6. Step 6: Final answer
    x = 136,147.05

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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.