Home / 140,155.81-193,354.34-85,710.36

Finding the Fourth Proportional to 140,155.81, 193,354.34 and 85,710.36

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Solution

The fourth proportional to 140,155.81, 193,354.34 and 85,710.36 is: 118,243.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,155.81 : 193,354.34 = 85,710.36 : x
  2. Step 2: Convert to fraction form
    140,155.81/193,354.34 = 85,710.36/x
  3. Step 3: Cross multiply
    140,155.81x = 193,354.34 × 85,710.36
  4. Step 4: Simplify right side
    140,155.81x = 16,572,470,088.96
  5. Step 5: Solve for x
    x = 16,572,470,088.96/140,155.81
  6. Step 6: Final answer
    x = 118,243.19

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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.