Home / 161,813.90-243,012.45-156,565.10

Finding the Fourth Proportional to 161,813.90, 243,012.45 and 156,565.10

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Solution

The fourth proportional to 161,813.90, 243,012.45 and 156,565.10 is: 235,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,813.90 : 243,012.45 = 156,565.10 : x
  2. Step 2: Convert to fraction form
    161,813.90/243,012.45 = 156,565.10/x
  3. Step 3: Cross multiply
    161,813.90x = 243,012.45 × 156,565.10
  4. Step 4: Simplify right side
    161,813.90x = 38,047,268,535.50
  5. Step 5: Solve for x
    x = 38,047,268,535.50/161,813.90
  6. Step 6: Final answer
    x = 235,129.79

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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.