Home / 155,492.28-214,577.33-87,509.34

Finding the Fourth Proportional to 155,492.28, 214,577.33 and 87,509.34

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Solution

The fourth proportional to 155,492.28, 214,577.33 and 87,509.34 is: 120,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,492.28 : 214,577.33 = 87,509.34 : x
  2. Step 2: Convert to fraction form
    155,492.28/214,577.33 = 87,509.34/x
  3. Step 3: Cross multiply
    155,492.28x = 214,577.33 × 87,509.34
  4. Step 4: Simplify right side
    155,492.28x = 18,777,520,089.72
  5. Step 5: Solve for x
    x = 18,777,520,089.72/155,492.28
  6. Step 6: Final answer
    x = 120,761.75

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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.