Home / 154,498.29-213,190.02-86,505.81

Finding the Fourth Proportional to 154,498.29, 213,190.02 and 86,505.81

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Solution

The fourth proportional to 154,498.29, 213,190.02 and 86,505.81 is: 119,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,498.29 : 213,190.02 = 86,505.81 : x
  2. Step 2: Convert to fraction form
    154,498.29/213,190.02 = 86,505.81/x
  3. Step 3: Cross multiply
    154,498.29x = 213,190.02 × 86,505.81
  4. Step 4: Simplify right side
    154,498.29x = 18,442,175,364.02
  5. Step 5: Solve for x
    x = 18,442,175,364.02/154,498.29
  6. Step 6: Final answer
    x = 119,368.15

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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.