Home / 105,316.59-145,336.91-57,570.14

Finding the Fourth Proportional to 105,316.59, 145,336.91 and 57,570.14

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Solution

The fourth proportional to 105,316.59, 145,336.91 and 57,570.14 is: 79,446.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,316.59 : 145,336.91 = 57,570.14 : x
  2. Step 2: Convert to fraction form
    105,316.59/145,336.91 = 57,570.14/x
  3. Step 3: Cross multiply
    105,316.59x = 145,336.91 × 57,570.14
  4. Step 4: Simplify right side
    105,316.59x = 8,367,065,241.33
  5. Step 5: Solve for x
    x = 8,367,065,241.33/105,316.59
  6. Step 6: Final answer
    x = 79,446.79

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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.