Home / 144,916.31-199,986.56-87,547.66

Finding the Fourth Proportional to 144,916.31, 199,986.56 and 87,547.66

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Solution

The fourth proportional to 144,916.31, 199,986.56 and 87,547.66 is: 120,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,916.31 : 199,986.56 = 87,547.66 : x
  2. Step 2: Convert to fraction form
    144,916.31/199,986.56 = 87,547.66/x
  3. Step 3: Cross multiply
    144,916.31x = 199,986.56 × 87,547.66
  4. Step 4: Simplify right side
    144,916.31x = 17,508,354,421.74
  5. Step 5: Solve for x
    x = 17,508,354,421.74/144,916.31
  6. Step 6: Final answer
    x = 120,817.00

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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.