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Finding the Fourth Proportional to 112,999.60, 169,666.80 and 63,179.20

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Solution

The fourth proportional to 112,999.60, 169,666.80 and 63,179.20 is: 94,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,999.60 : 169,666.80 = 63,179.20 : x
  2. Step 2: Convert to fraction form
    112,999.60/169,666.80 = 63,179.20/x
  3. Step 3: Cross multiply
    112,999.60x = 169,666.80 × 63,179.20
  4. Step 4: Simplify right side
    112,999.60x = 10,719,412,690.56
  5. Step 5: Solve for x
    x = 10,719,412,690.56/112,999.60
  6. Step 6: Final answer
    x = 94,862.40

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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.