Home / 105,377.11-145,430.12-62,934.73

Finding the Fourth Proportional to 105,377.11, 145,430.12 and 62,934.73

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Solution

The fourth proportional to 105,377.11, 145,430.12 and 62,934.73 is: 86,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,377.11 : 145,430.12 = 62,934.73 : x
  2. Step 2: Convert to fraction form
    105,377.11/145,430.12 = 62,934.73/x
  3. Step 3: Cross multiply
    105,377.11x = 145,430.12 × 62,934.73
  4. Step 4: Simplify right side
    105,377.11x = 9,152,605,336.07
  5. Step 5: Solve for x
    x = 9,152,605,336.07/105,377.11
  6. Step 6: Final answer
    x = 86,855.73

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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.