Home / 216,547.82-324,877.08-90,146.04

Finding the Fourth Proportional to 216,547.82, 324,877.08 and 90,146.04

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Solution

The fourth proportional to 216,547.82, 324,877.08 and 90,146.04 is: 135,242.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,547.82 : 324,877.08 = 90,146.04 : x
  2. Step 2: Convert to fraction form
    216,547.82/324,877.08 = 90,146.04/x
  3. Step 3: Cross multiply
    216,547.82x = 324,877.08 × 90,146.04
  4. Step 4: Simplify right side
    216,547.82x = 29,286,382,248.76
  5. Step 5: Solve for x
    x = 29,286,382,248.76/216,547.82
  6. Step 6: Final answer
    x = 135,242.10

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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.