Home / 101,199.36-139,653.12-56,486.40

Finding the Fourth Proportional to 101,199.36, 139,653.12 and 56,486.40

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Solution

The fourth proportional to 101,199.36, 139,653.12 and 56,486.40 is: 77,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,199.36 : 139,653.12 = 56,486.40 : x
  2. Step 2: Convert to fraction form
    101,199.36/139,653.12 = 56,486.40/x
  3. Step 3: Cross multiply
    101,199.36x = 139,653.12 × 56,486.40
  4. Step 4: Simplify right side
    101,199.36x = 7,888,501,997.57
  5. Step 5: Solve for x
    x = 7,888,501,997.57/101,199.36
  6. Step 6: Final answer
    x = 77,950.12

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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.