Home / 140,248.10-193,549.63-85,783.20

Finding the Fourth Proportional to 140,248.10, 193,549.63 and 85,783.20

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Solution

The fourth proportional to 140,248.10, 193,549.63 and 85,783.20 is: 118,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,248.10 : 193,549.63 = 85,783.20 : x
  2. Step 2: Convert to fraction form
    140,248.10/193,549.63 = 85,783.20/x
  3. Step 3: Cross multiply
    140,248.10x = 193,549.63 × 85,783.20
  4. Step 4: Simplify right side
    140,248.10x = 16,603,306,620.22
  5. Step 5: Solve for x
    x = 16,603,306,620.22/140,248.10
  6. Step 6: Final answer
    x = 118,385.25

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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.