Home / 161,916.40-242,801.70-73,124.20

Finding the Fourth Proportional to 161,916.40, 242,801.70 and 73,124.20

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Solution

The fourth proportional to 161,916.40, 242,801.70 and 73,124.20 is: 109,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,916.40 : 242,801.70 = 73,124.20 : x
  2. Step 2: Convert to fraction form
    161,916.40/242,801.70 = 73,124.20/x
  3. Step 3: Cross multiply
    161,916.40x = 242,801.70 × 73,124.20
  4. Step 4: Simplify right side
    161,916.40x = 17,754,680,071.14
  5. Step 5: Solve for x
    x = 17,754,680,071.14/161,916.40
  6. Step 6: Final answer
    x = 109,653.38

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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.