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Finding the Fourth Proportional to 162,037.80, 242,978.94 and 83,111.40

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Solution

The fourth proportional to 162,037.80, 242,978.94 and 83,111.40 is: 124,627.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,037.80 : 242,978.94 = 83,111.40 : x
  2. Step 2: Convert to fraction form
    162,037.80/242,978.94 = 83,111.40/x
  3. Step 3: Cross multiply
    162,037.80x = 242,978.94 × 83,111.40
  4. Step 4: Simplify right side
    162,037.80x = 20,194,319,873.92
  5. Step 5: Solve for x
    x = 20,194,319,873.92/162,037.80
  6. Step 6: Final answer
    x = 124,627.22

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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.