Home / 236,386.60-354,503.10-78,588.20

Finding the Fourth Proportional to 236,386.60, 354,503.10 and 78,588.20

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Solution

The fourth proportional to 236,386.60, 354,503.10 and 78,588.20 is: 117,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,386.60 : 354,503.10 = 78,588.20 : x
  2. Step 2: Convert to fraction form
    236,386.60/354,503.10 = 78,588.20/x
  3. Step 3: Cross multiply
    236,386.60x = 354,503.10 × 78,588.20
  4. Step 4: Simplify right side
    236,386.60x = 27,859,760,523.42
  5. Step 5: Solve for x
    x = 27,859,760,523.42/236,386.60
  6. Step 6: Final answer
    x = 117,856.77

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1.5x scale

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.