Home / 140,384.94-193,730.75-76,722.72

Finding the Fourth Proportional to 140,384.94, 193,730.75 and 76,722.72

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Solution

The fourth proportional to 140,384.94, 193,730.75 and 76,722.72 is: 105,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,384.94 : 193,730.75 = 76,722.72 : x
  2. Step 2: Convert to fraction form
    140,384.94/193,730.75 = 76,722.72/x
  3. Step 3: Cross multiply
    140,384.94x = 193,730.75 × 76,722.72
  4. Step 4: Simplify right side
    140,384.94x = 14,863,549,991.74
  5. Step 5: Solve for x
    x = 14,863,549,991.74/140,384.94
  6. Step 6: Final answer
    x = 105,877.10

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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.