Home / 105,490.17-158,235.26-43,126.65

Finding the Fourth Proportional to 105,490.17, 158,235.26 and 43,126.65

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Solution

The fourth proportional to 105,490.17, 158,235.26 and 43,126.65 is: 64,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,490.17 : 158,235.26 = 43,126.65 : x
  2. Step 2: Convert to fraction form
    105,490.17/158,235.26 = 43,126.65/x
  3. Step 3: Cross multiply
    105,490.17x = 158,235.26 × 43,126.65
  4. Step 4: Simplify right side
    105,490.17x = 6,824,156,460.05
  5. Step 5: Solve for x
    x = 6,824,156,460.05/105,490.17
  6. Step 6: Final answer
    x = 64,689.98

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1.5x scale

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.