Home / 155,116.76-214,049.93-87,130.22

Finding the Fourth Proportional to 155,116.76, 214,049.93 and 87,130.22

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Solution

The fourth proportional to 155,116.76, 214,049.93 and 87,130.22 is: 120,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,116.76 : 214,049.93 = 87,130.22 : x
  2. Step 2: Convert to fraction form
    155,116.76/214,049.93 = 87,130.22/x
  3. Step 3: Cross multiply
    155,116.76x = 214,049.93 × 87,130.22
  4. Step 4: Simplify right side
    155,116.76x = 18,650,215,985.98
  5. Step 5: Solve for x
    x = 18,650,215,985.98/155,116.76
  6. Step 6: Final answer
    x = 120,233.41

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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.