Home / 147,015.10-220,522.65-87,820.30

Finding the Fourth Proportional to 147,015.10, 220,522.65 and 87,820.30

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Solution

The fourth proportional to 147,015.10, 220,522.65 and 87,820.30 is: 131,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,015.10 : 220,522.65 = 87,820.30 : x
  2. Step 2: Convert to fraction form
    147,015.10/220,522.65 = 87,820.30/x
  3. Step 3: Cross multiply
    147,015.10x = 220,522.65 × 87,820.30
  4. Step 4: Simplify right side
    147,015.10x = 19,366,365,279.80
  5. Step 5: Solve for x
    x = 19,366,365,279.80/147,015.10
  6. Step 6: Final answer
    x = 131,730.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.