Home / 155,490.44-214,567.92-87,510.24

Finding the Fourth Proportional to 155,490.44, 214,567.92 and 87,510.24

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Solution

The fourth proportional to 155,490.44, 214,567.92 and 87,510.24 is: 120,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,490.44 : 214,567.92 = 87,510.24 : x
  2. Step 2: Convert to fraction form
    155,490.44/214,567.92 = 87,510.24/x
  3. Step 3: Cross multiply
    155,490.44x = 214,567.92 × 87,510.24
  4. Step 4: Simplify right side
    155,490.44x = 18,776,890,175.50
  5. Step 5: Solve for x
    x = 18,776,890,175.50/155,490.44
  6. Step 6: Final answer
    x = 120,759.13

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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.