Home / 161,813.40-243,011.70-156,564.60

Finding the Fourth Proportional to 161,813.40, 243,011.70 and 156,564.60

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Solution

The fourth proportional to 161,813.40, 243,011.70 and 156,564.60 is: 235,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,813.40 : 243,011.70 = 156,564.60 : x
  2. Step 2: Convert to fraction form
    161,813.40/243,011.70 = 156,564.60/x
  3. Step 3: Cross multiply
    161,813.40x = 243,011.70 × 156,564.60
  4. Step 4: Simplify right side
    161,813.40x = 38,047,029,605.82
  5. Step 5: Solve for x
    x = 38,047,029,605.82/161,813.40
  6. Step 6: Final answer
    x = 235,129.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.