Home / 155,500.32-214,573.80-87,516.15

Finding the Fourth Proportional to 155,500.32, 214,573.80 and 87,516.15

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Solution

The fourth proportional to 155,500.32, 214,573.80 and 87,516.15 is: 120,762.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,500.32 : 214,573.80 = 87,516.15 : x
  2. Step 2: Convert to fraction form
    155,500.32/214,573.80 = 87,516.15/x
  3. Step 3: Cross multiply
    155,500.32x = 214,573.80 × 87,516.15
  4. Step 4: Simplify right side
    155,500.32x = 18,778,672,866.87
  5. Step 5: Solve for x
    x = 18,778,672,866.87/155,500.32
  6. Step 6: Final answer
    x = 120,762.92

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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.