Home / 157,613.70-236,420.55-78,881.70

Finding the Fourth Proportional to 157,613.70, 236,420.55 and 78,881.70

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Solution

The fourth proportional to 157,613.70, 236,420.55 and 78,881.70 is: 118,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,613.70 : 236,420.55 = 78,881.70 : x
  2. Step 2: Convert to fraction form
    157,613.70/236,420.55 = 78,881.70/x
  3. Step 3: Cross multiply
    157,613.70x = 236,420.55 × 78,881.70
  4. Step 4: Simplify right side
    157,613.70x = 18,649,254,898.94
  5. Step 5: Solve for x
    x = 18,649,254,898.94/157,613.70
  6. Step 6: Final answer
    x = 118,322.55

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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.