Home / 120,011.74-165,602.01-66,293.53

Finding the Fourth Proportional to 120,011.74, 165,602.01 and 66,293.53

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Solution

The fourth proportional to 120,011.74, 165,602.01 and 66,293.53 is: 91,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,011.74 : 165,602.01 = 66,293.53 : x
  2. Step 2: Convert to fraction form
    120,011.74/165,602.01 = 66,293.53/x
  3. Step 3: Cross multiply
    120,011.74x = 165,602.01 × 66,293.53
  4. Step 4: Simplify right side
    120,011.74x = 10,978,341,818.00
  5. Step 5: Solve for x
    x = 10,978,341,818.00/120,011.74
  6. Step 6: Final answer
    x = 91,477.23

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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.