Home / 101,477.20-140,036.44-56,155.15

Finding the Fourth Proportional to 101,477.20, 140,036.44 and 56,155.15

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Solution

The fourth proportional to 101,477.20, 140,036.44 and 56,155.15 is: 77,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,477.20 : 140,036.44 = 56,155.15 : x
  2. Step 2: Convert to fraction form
    101,477.20/140,036.44 = 56,155.15/x
  3. Step 3: Cross multiply
    101,477.20x = 140,036.44 × 56,155.15
  4. Step 4: Simplify right side
    101,477.20x = 7,863,767,293.67
  5. Step 5: Solve for x
    x = 7,863,767,293.67/101,477.20
  6. Step 6: Final answer
    x = 77,492.95

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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.