Home / 157,827.60-236,887.20-78,998.40

Finding the Fourth Proportional to 157,827.60, 236,887.20 and 78,998.40

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Solution

The fourth proportional to 157,827.60, 236,887.20 and 78,998.40 is: 118,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,827.60 : 236,887.20 = 78,998.40 : x
  2. Step 2: Convert to fraction form
    157,827.60/236,887.20 = 78,998.40/x
  3. Step 3: Cross multiply
    157,827.60x = 236,887.20 × 78,998.40
  4. Step 4: Simplify right side
    157,827.60x = 18,713,709,780.48
  5. Step 5: Solve for x
    x = 18,713,709,780.48/157,827.60
  6. Step 6: Final answer
    x = 118,570.58

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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.