Home / 103,491.18-142,833.30-63,228.21

Finding the Fourth Proportional to 103,491.18, 142,833.30 and 63,228.21

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Solution

The fourth proportional to 103,491.18, 142,833.30 and 63,228.21 is: 87,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,491.18 : 142,833.30 = 63,228.21 : x
  2. Step 2: Convert to fraction form
    103,491.18/142,833.30 = 63,228.21/x
  3. Step 3: Cross multiply
    103,491.18x = 142,833.30 × 63,228.21
  4. Step 4: Simplify right side
    103,491.18x = 9,031,093,887.39
  5. Step 5: Solve for x
    x = 9,031,093,887.39/103,491.18
  6. Step 6: Final answer
    x = 87,264.38

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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.