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Finding the Fourth Proportional to 155,482.49, 214,563.92 and 87,499.59

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Solution

The fourth proportional to 155,482.49, 214,563.92 and 87,499.59 is: 120,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,482.49 : 214,563.92 = 87,499.59 : x
  2. Step 2: Convert to fraction form
    155,482.49/214,563.92 = 87,499.59/x
  3. Step 3: Cross multiply
    155,482.49x = 214,563.92 × 87,499.59
  4. Step 4: Simplify right side
    155,482.49x = 18,774,254,591.29
  5. Step 5: Solve for x
    x = 18,774,254,591.29/155,482.49
  6. Step 6: Final answer
    x = 120,748.36

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1.5x scale

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.