Home / 105,878.95-146,113.23-58,135.39

Finding the Fourth Proportional to 105,878.95, 146,113.23 and 58,135.39

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Solution

The fourth proportional to 105,878.95, 146,113.23 and 58,135.39 is: 80,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,878.95 : 146,113.23 = 58,135.39 : x
  2. Step 2: Convert to fraction form
    105,878.95/146,113.23 = 58,135.39/x
  3. Step 3: Cross multiply
    105,878.95x = 146,113.23 × 58,135.39
  4. Step 4: Simplify right side
    105,878.95x = 8,494,349,462.93
  5. Step 5: Solve for x
    x = 8,494,349,462.93/105,878.95
  6. Step 6: Final answer
    x = 80,226.99

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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.