Home / 140,068.10-193,295.38-76,407.24

Finding the Fourth Proportional to 140,068.10, 193,295.38 and 76,407.24

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Solution

The fourth proportional to 140,068.10, 193,295.38 and 76,407.24 is: 105,442.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,068.10 : 193,295.38 = 76,407.24 : x
  2. Step 2: Convert to fraction form
    140,068.10/193,295.38 = 76,407.24/x
  3. Step 3: Cross multiply
    140,068.10x = 193,295.38 × 76,407.24
  4. Step 4: Simplify right side
    140,068.10x = 14,769,166,490.55
  5. Step 5: Solve for x
    x = 14,769,166,490.55/140,068.10
  6. Step 6: Final answer
    x = 105,442.76

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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.