Home / 117,219.18-161,762.28-63,505.56

Finding the Fourth Proportional to 117,219.18, 161,762.28 and 63,505.56

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Solution

The fourth proportional to 117,219.18, 161,762.28 and 63,505.56 is: 87,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,219.18 : 161,762.28 = 63,505.56 : x
  2. Step 2: Convert to fraction form
    117,219.18/161,762.28 = 63,505.56/x
  3. Step 3: Cross multiply
    117,219.18x = 161,762.28 × 63,505.56
  4. Step 4: Simplify right side
    117,219.18x = 10,272,804,178.28
  5. Step 5: Solve for x
    x = 10,272,804,178.28/117,219.18
  6. Step 6: Final answer
    x = 87,637.57

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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.