Home / 161,821.47-242,814.06-109,120.17

Finding the Fourth Proportional to 161,821.47, 242,814.06 and 109,120.17

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Solution

The fourth proportional to 161,821.47, 242,814.06 and 109,120.17 is: 163,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,821.47 : 242,814.06 = 109,120.17 : x
  2. Step 2: Convert to fraction form
    161,821.47/242,814.06 = 109,120.17/x
  3. Step 3: Cross multiply
    161,821.47x = 242,814.06 × 109,120.17
  4. Step 4: Simplify right side
    161,821.47x = 26,495,911,505.59
  5. Step 5: Solve for x
    x = 26,495,911,505.59/161,821.47
  6. Step 6: Final answer
    x = 163,735.45

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1.5x scale

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.