Home / 105,126.17-145,092.93-62,687.44

Finding the Fourth Proportional to 105,126.17, 145,092.93 and 62,687.44

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Solution

The fourth proportional to 105,126.17, 145,092.93 and 62,687.44 is: 86,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,126.17 : 145,092.93 = 62,687.44 : x
  2. Step 2: Convert to fraction form
    105,126.17/145,092.93 = 62,687.44/x
  3. Step 3: Cross multiply
    105,126.17x = 145,092.93 × 62,687.44
  4. Step 4: Simplify right side
    105,126.17x = 9,095,503,981.07
  5. Step 5: Solve for x
    x = 9,095,503,981.07/105,126.17
  6. Step 6: Final answer
    x = 86,519.88

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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.