Home / 120,210.16-165,888.60-66,490.96

Finding the Fourth Proportional to 120,210.16, 165,888.60 and 66,490.96

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Solution

The fourth proportional to 120,210.16, 165,888.60 and 66,490.96 is: 91,756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,210.16 : 165,888.60 = 66,490.96 : x
  2. Step 2: Convert to fraction form
    120,210.16/165,888.60 = 66,490.96/x
  3. Step 3: Cross multiply
    120,210.16x = 165,888.60 × 66,490.96
  4. Step 4: Simplify right side
    120,210.16x = 11,030,092,267.06
  5. Step 5: Solve for x
    x = 11,030,092,267.06/120,210.16
  6. Step 6: Final answer
    x = 91,756.74

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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.