Home / 155,434.41-214,490.67-87,454.25

Finding the Fourth Proportional to 155,434.41, 214,490.67 and 87,454.25

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Solution

The fourth proportional to 155,434.41, 214,490.67 and 87,454.25 is: 120,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,434.41 : 214,490.67 = 87,454.25 : x
  2. Step 2: Convert to fraction form
    155,434.41/214,490.67 = 87,454.25/x
  3. Step 3: Cross multiply
    155,434.41x = 214,490.67 × 87,454.25
  4. Step 4: Simplify right side
    155,434.41x = 18,758,119,604.39
  5. Step 5: Solve for x
    x = 18,758,119,604.39/155,434.41
  6. Step 6: Final answer
    x = 120,681.90

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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.