Home / 151,491.92-209,068.04-84,423.76

Finding the Fourth Proportional to 151,491.92, 209,068.04 and 84,423.76

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Solution

The fourth proportional to 151,491.92, 209,068.04 and 84,423.76 is: 116,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,491.92 : 209,068.04 = 84,423.76 : x
  2. Step 2: Convert to fraction form
    151,491.92/209,068.04 = 84,423.76/x
  3. Step 3: Cross multiply
    151,491.92x = 209,068.04 × 84,423.76
  4. Step 4: Simplify right side
    151,491.92x = 17,650,310,032.63
  5. Step 5: Solve for x
    x = 17,650,310,032.63/151,491.92
  6. Step 6: Final answer
    x = 116,509.91

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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.