Home / 113,559.50-156,710.85-64,500.77

Finding the Fourth Proportional to 113,559.50, 156,710.85 and 64,500.77

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Solution

The fourth proportional to 113,559.50, 156,710.85 and 64,500.77 is: 89,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,559.50 : 156,710.85 = 64,500.77 : x
  2. Step 2: Convert to fraction form
    113,559.50/156,710.85 = 64,500.77/x
  3. Step 3: Cross multiply
    113,559.50x = 156,710.85 × 64,500.77
  4. Step 4: Simplify right side
    113,559.50x = 10,107,970,492.35
  5. Step 5: Solve for x
    x = 10,107,970,492.35/113,559.50
  6. Step 6: Final answer
    x = 89,010.35

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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.