Home / 157,543.20-236,347.20-52,437.60

Finding the Fourth Proportional to 157,543.20, 236,347.20 and 52,437.60

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Solution

The fourth proportional to 157,543.20, 236,347.20 and 52,437.60 is: 78,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,543.20 : 236,347.20 = 52,437.60 : x
  2. Step 2: Convert to fraction form
    157,543.20/236,347.20 = 52,437.60/x
  3. Step 3: Cross multiply
    157,543.20x = 236,347.20 × 52,437.60
  4. Step 4: Simplify right side
    157,543.20x = 12,393,479,934.72
  5. Step 5: Solve for x
    x = 12,393,479,934.72/157,543.20
  6. Step 6: Final answer
    x = 78,667.18

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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.