Home / 145,948.96-201,405-82,285.84

Finding the Fourth Proportional to 145,948.96, 201,405 and 82,285.84

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Solution

The fourth proportional to 145,948.96, 201,405 and 82,285.84 is: 113,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,948.96 : 201,405 = 82,285.84 : x
  2. Step 2: Convert to fraction form
    145,948.96/201,405 = 82,285.84/x
  3. Step 3: Cross multiply
    145,948.96x = 201,405 × 82,285.84
  4. Step 4: Simplify right side
    145,948.96x = 16,572,779,605.20
  5. Step 5: Solve for x
    x = 16,572,779,605.20/145,948.96
  6. Step 6: Final answer
    x = 113,551.89

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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.