Home / 105,092.20-145,026.84-57,345.13

Finding the Fourth Proportional to 105,092.20, 145,026.84 and 57,345.13

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Solution

The fourth proportional to 105,092.20, 145,026.84 and 57,345.13 is: 79,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,092.20 : 145,026.84 = 57,345.13 : x
  2. Step 2: Convert to fraction form
    105,092.20/145,026.84 = 57,345.13/x
  3. Step 3: Cross multiply
    105,092.20x = 145,026.84 × 57,345.13
  4. Step 4: Simplify right side
    105,092.20x = 8,316,582,993.29
  5. Step 5: Solve for x
    x = 8,316,582,993.29/105,092.20
  6. Step 6: Final answer
    x = 79,136.06

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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.