Home / 147,615.70-221,445.15-77,500.30

Finding the Fourth Proportional to 147,615.70, 221,445.15 and 77,500.30

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Solution

The fourth proportional to 147,615.70, 221,445.15 and 77,500.30 is: 116,261.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,615.70 : 221,445.15 = 77,500.30 : x
  2. Step 2: Convert to fraction form
    147,615.70/221,445.15 = 77,500.30/x
  3. Step 3: Cross multiply
    147,615.70x = 221,445.15 × 77,500.30
  4. Step 4: Simplify right side
    147,615.70x = 17,162,065,558.55
  5. Step 5: Solve for x
    x = 17,162,065,558.55/147,615.70
  6. Step 6: Final answer
    x = 116,261.79

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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.