Home / 105,808.68-146,017.08-58,065.12

Finding the Fourth Proportional to 105,808.68, 146,017.08 and 58,065.12

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Solution

The fourth proportional to 105,808.68, 146,017.08 and 58,065.12 is: 80,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,808.68 : 146,017.08 = 58,065.12 : x
  2. Step 2: Convert to fraction form
    105,808.68/146,017.08 = 58,065.12/x
  3. Step 3: Cross multiply
    105,808.68x = 146,017.08 × 58,065.12
  4. Step 4: Simplify right side
    105,808.68x = 8,478,499,272.25
  5. Step 5: Solve for x
    x = 8,478,499,272.25/105,808.68
  6. Step 6: Final answer
    x = 80,130.47

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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.