Home / 161,854.37-242,851.51-86,886.97

Finding the Fourth Proportional to 161,854.37, 242,851.51 and 86,886.97

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Solution

The fourth proportional to 161,854.37, 242,851.51 and 86,886.97 is: 130,368.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,854.37 : 242,851.51 = 86,886.97 : x
  2. Step 2: Convert to fraction form
    161,854.37/242,851.51 = 86,886.97/x
  3. Step 3: Cross multiply
    161,854.37x = 242,851.51 × 86,886.97
  4. Step 4: Simplify right side
    161,854.37x = 21,100,630,649.57
  5. Step 5: Solve for x
    x = 21,100,630,649.57/161,854.37
  6. Step 6: Final answer
    x = 130,368.00

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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.