Home / 105,747.68-145,937.14-58,005.47

Finding the Fourth Proportional to 105,747.68, 145,937.14 and 58,005.47

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Solution

The fourth proportional to 105,747.68, 145,937.14 and 58,005.47 is: 80,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,747.68 : 145,937.14 = 58,005.47 : x
  2. Step 2: Convert to fraction form
    105,747.68/145,937.14 = 58,005.47/x
  3. Step 3: Cross multiply
    105,747.68x = 145,937.14 × 58,005.47
  4. Step 4: Simplify right side
    105,747.68x = 8,465,151,521.46
  5. Step 5: Solve for x
    x = 8,465,151,521.46/105,747.68
  6. Step 6: Final answer
    x = 80,050.47

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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.