Home / 161,742.80-242,531.35-86,925.94

Finding the Fourth Proportional to 161,742.80, 242,531.35 and 86,925.94

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Solution

The fourth proportional to 161,742.80, 242,531.35 and 86,925.94 is: 130,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,742.80 : 242,531.35 = 86,925.94 : x
  2. Step 2: Convert to fraction form
    161,742.80/242,531.35 = 86,925.94/x
  3. Step 3: Cross multiply
    161,742.80x = 242,531.35 × 86,925.94
  4. Step 4: Simplify right side
    161,742.80x = 21,082,265,578.22
  5. Step 5: Solve for x
    x = 21,082,265,578.22/161,742.80
  6. Step 6: Final answer
    x = 130,344.38

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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.