Home / 78,225.51-116,331.90-75,734.37

Finding the Fourth Proportional to 78,225.51, 116,331.90 and 75,734.37

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Solution

The fourth proportional to 78,225.51, 116,331.90 and 75,734.37 is: 112,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,225.51 : 116,331.90 = 75,734.37 : x
  2. Step 2: Convert to fraction form
    78,225.51/116,331.90 = 75,734.37/x
  3. Step 3: Cross multiply
    78,225.51x = 116,331.90 × 75,734.37
  4. Step 4: Simplify right side
    78,225.51x = 8,810,323,157.40
  5. Step 5: Solve for x
    x = 8,810,323,157.40/78,225.51
  6. Step 6: Final answer
    x = 112,627.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.