Home / 151,560.64-209,172.54-87,050.08

Finding the Fourth Proportional to 151,560.64, 209,172.54 and 87,050.08

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Solution

The fourth proportional to 151,560.64, 209,172.54 and 87,050.08 is: 120,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,560.64 : 209,172.54 = 87,050.08 : x
  2. Step 2: Convert to fraction form
    151,560.64/209,172.54 = 87,050.08/x
  3. Step 3: Cross multiply
    151,560.64x = 209,172.54 × 87,050.08
  4. Step 4: Simplify right side
    151,560.64x = 18,208,486,340.80
  5. Step 5: Solve for x
    x = 18,208,486,340.80/151,560.64
  6. Step 6: Final answer
    x = 120,139.94

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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.