Home / 105,680.70-145,840.55-60,364.69

Finding the Fourth Proportional to 105,680.70, 145,840.55 and 60,364.69

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Solution

The fourth proportional to 105,680.70, 145,840.55 and 60,364.69 is: 83,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,680.70 : 145,840.55 = 60,364.69 : x
  2. Step 2: Convert to fraction form
    105,680.70/145,840.55 = 60,364.69/x
  3. Step 3: Cross multiply
    105,680.70x = 145,840.55 × 60,364.69
  4. Step 4: Simplify right side
    105,680.70x = 8,803,620,083.66
  5. Step 5: Solve for x
    x = 8,803,620,083.66/105,680.70
  6. Step 6: Final answer
    x = 83,303.95

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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.