Home / 124,547.70-186,616.35-71,865.30

Finding the Fourth Proportional to 124,547.70, 186,616.35 and 71,865.30

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Solution

The fourth proportional to 124,547.70, 186,616.35 and 71,865.30 is: 107,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,547.70 : 186,616.35 = 71,865.30 : x
  2. Step 2: Convert to fraction form
    124,547.70/186,616.35 = 71,865.30/x
  3. Step 3: Cross multiply
    124,547.70x = 186,616.35 × 71,865.30
  4. Step 4: Simplify right side
    124,547.70x = 13,411,239,977.66
  5. Step 5: Solve for x
    x = 13,411,239,977.66/124,547.70
  6. Step 6: Final answer
    x = 107,679.55

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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.