Home / 105,461.09-145,513.76-62,454.09

Finding the Fourth Proportional to 105,461.09, 145,513.76 and 62,454.09

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Solution

The fourth proportional to 105,461.09, 145,513.76 and 62,454.09 is: 86,173.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,461.09 : 145,513.76 = 62,454.09 : x
  2. Step 2: Convert to fraction form
    105,461.09/145,513.76 = 62,454.09/x
  3. Step 3: Cross multiply
    105,461.09x = 145,513.76 × 62,454.09
  4. Step 4: Simplify right side
    105,461.09x = 9,087,929,463.28
  5. Step 5: Solve for x
    x = 9,087,929,463.28/105,461.09
  6. Step 6: Final answer
    x = 86,173.29

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1.5x scale

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.