Home / 159,050.90-219,490.47-87,431.36

Finding the Fourth Proportional to 159,050.90, 219,490.47 and 87,431.36

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Solution

The fourth proportional to 159,050.90, 219,490.47 and 87,431.36 is: 120,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,050.90 : 219,490.47 = 87,431.36 : x
  2. Step 2: Convert to fraction form
    159,050.90/219,490.47 = 87,431.36/x
  3. Step 3: Cross multiply
    159,050.90x = 219,490.47 × 87,431.36
  4. Step 4: Simplify right side
    159,050.90x = 19,190,350,299.14
  5. Step 5: Solve for x
    x = 19,190,350,299.14/159,050.90
  6. Step 6: Final answer
    x = 120,655.40

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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.