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Finding the Fourth Proportional to 161,746.60, 242,619.90 and 144,639.40

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Solution

The fourth proportional to 161,746.60, 242,619.90 and 144,639.40 is: 216,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,746.60 : 242,619.90 = 144,639.40 : x
  2. Step 2: Convert to fraction form
    161,746.60/242,619.90 = 144,639.40/x
  3. Step 3: Cross multiply
    161,746.60x = 242,619.90 × 144,639.40
  4. Step 4: Simplify right side
    161,746.60x = 35,092,396,764.06
  5. Step 5: Solve for x
    x = 35,092,396,764.06/161,746.60
  6. Step 6: Final answer
    x = 216,959.10

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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.