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Finding the Fourth Proportional to 112,499.60, 168,749.40 and 107,315.60

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Solution

The fourth proportional to 112,499.60, 168,749.40 and 107,315.60 is: 160,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,499.60 : 168,749.40 = 107,315.60 : x
  2. Step 2: Convert to fraction form
    112,499.60/168,749.40 = 107,315.60/x
  3. Step 3: Cross multiply
    112,499.60x = 168,749.40 × 107,315.60
  4. Step 4: Simplify right side
    112,499.60x = 18,109,443,110.64
  5. Step 5: Solve for x
    x = 18,109,443,110.64/112,499.60
  6. Step 6: Final answer
    x = 160,973.40

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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.