Home / 113,868.21-157,138.11-63,567.21

Finding the Fourth Proportional to 113,868.21, 157,138.11 and 63,567.21

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Solution

The fourth proportional to 113,868.21, 157,138.11 and 63,567.21 is: 87,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,868.21 : 157,138.11 = 63,567.21 : x
  2. Step 2: Convert to fraction form
    113,868.21/157,138.11 = 63,567.21/x
  3. Step 3: Cross multiply
    113,868.21x = 157,138.11 × 63,567.21
  4. Step 4: Simplify right side
    113,868.21x = 9,988,831,237.37
  5. Step 5: Solve for x
    x = 9,988,831,237.37/113,868.21
  6. Step 6: Final answer
    x = 87,722.74

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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.