Home / 236,385.60-354,501.60-78,587.20

Finding the Fourth Proportional to 236,385.60, 354,501.60 and 78,587.20

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Solution

The fourth proportional to 236,385.60, 354,501.60 and 78,587.20 is: 117,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,385.60 : 354,501.60 = 78,587.20 : x
  2. Step 2: Convert to fraction form
    236,385.60/354,501.60 = 78,587.20/x
  3. Step 3: Cross multiply
    236,385.60x = 354,501.60 × 78,587.20
  4. Step 4: Simplify right side
    236,385.60x = 27,859,288,139.52
  5. Step 5: Solve for x
    x = 27,859,288,139.52/236,385.60
  6. Step 6: Final answer
    x = 117,855.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.