Home / 105,416.67-145,535.13-69,710.25

Finding the Fourth Proportional to 105,416.67, 145,535.13 and 69,710.25

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Solution

The fourth proportional to 105,416.67, 145,535.13 and 69,710.25 is: 96,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,416.67 : 145,535.13 = 69,710.25 : x
  2. Step 2: Convert to fraction form
    105,416.67/145,535.13 = 69,710.25/x
  3. Step 3: Cross multiply
    105,416.67x = 145,535.13 × 69,710.25
  4. Step 4: Simplify right side
    105,416.67x = 10,145,290,296.08
  5. Step 5: Solve for x
    x = 10,145,290,296.08/105,416.67
  6. Step 6: Final answer
    x = 96,239.90

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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.