Home / 155,426.95-214,487.44-87,444.06

Finding the Fourth Proportional to 155,426.95, 214,487.44 and 87,444.06

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Solution

The fourth proportional to 155,426.95, 214,487.44 and 87,444.06 is: 120,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,426.95 : 214,487.44 = 87,444.06 : x
  2. Step 2: Convert to fraction form
    155,426.95/214,487.44 = 87,444.06/x
  3. Step 3: Cross multiply
    155,426.95x = 214,487.44 × 87,444.06
  4. Step 4: Simplify right side
    155,426.95x = 18,755,652,041.54
  5. Step 5: Solve for x
    x = 18,755,652,041.54/155,426.95
  6. Step 6: Final answer
    x = 120,671.81

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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.