Home / 120,749.81-166,635.32-75,454.10

Finding the Fourth Proportional to 120,749.81, 166,635.32 and 75,454.10

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Solution

The fourth proportional to 120,749.81, 166,635.32 and 75,454.10 is: 104,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,749.81 : 166,635.32 = 75,454.10 : x
  2. Step 2: Convert to fraction form
    120,749.81/166,635.32 = 75,454.10/x
  3. Step 3: Cross multiply
    120,749.81x = 166,635.32 × 75,454.10
  4. Step 4: Simplify right side
    120,749.81x = 12,573,316,888.36
  5. Step 5: Solve for x
    x = 12,573,316,888.36/120,749.81
  6. Step 6: Final answer
    x = 104,127.02

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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.