Home / 157,798.08-217,762.56-86,176.80

Finding the Fourth Proportional to 157,798.08, 217,762.56 and 86,176.80

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Solution

The fourth proportional to 157,798.08, 217,762.56 and 86,176.80 is: 118,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,798.08 : 217,762.56 = 86,176.80 : x
  2. Step 2: Convert to fraction form
    157,798.08/217,762.56 = 86,176.80/x
  3. Step 3: Cross multiply
    157,798.08x = 217,762.56 × 86,176.80
  4. Step 4: Simplify right side
    157,798.08x = 18,766,080,580.61
  5. Step 5: Solve for x
    x = 18,766,080,580.61/157,798.08
  6. Step 6: Final answer
    x = 118,924.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.