Home / 103,423.78-142,714.74-58,091.50

Finding the Fourth Proportional to 103,423.78, 142,714.74 and 58,091.50

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Solution

The fourth proportional to 103,423.78, 142,714.74 and 58,091.50 is: 80,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,423.78 : 142,714.74 = 58,091.50 : x
  2. Step 2: Convert to fraction form
    103,423.78/142,714.74 = 58,091.50/x
  3. Step 3: Cross multiply
    103,423.78x = 142,714.74 × 58,091.50
  4. Step 4: Simplify right side
    103,423.78x = 8,290,513,318.71
  5. Step 5: Solve for x
    x = 8,290,513,318.71/103,423.78
  6. Step 6: Final answer
    x = 80,160.61

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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.