Home / 149,646.06-206,547.02-86,020.82

Finding the Fourth Proportional to 149,646.06, 206,547.02 and 86,020.82

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Solution

The fourth proportional to 149,646.06, 206,547.02 and 86,020.82 is: 118,729.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,646.06 : 206,547.02 = 86,020.82 : x
  2. Step 2: Convert to fraction form
    149,646.06/206,547.02 = 86,020.82/x
  3. Step 3: Cross multiply
    149,646.06x = 206,547.02 × 86,020.82
  4. Step 4: Simplify right side
    149,646.06x = 17,767,344,028.96
  5. Step 5: Solve for x
    x = 17,767,344,028.96/149,646.06
  6. Step 6: Final answer
    x = 118,729.11

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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.