Home / 145,143.90-217,672.65-56,346.30

Finding the Fourth Proportional to 145,143.90, 217,672.65 and 56,346.30

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Solution

The fourth proportional to 145,143.90, 217,672.65 and 56,346.30 is: 84,502.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,143.90 : 217,672.65 = 56,346.30 : x
  2. Step 2: Convert to fraction form
    145,143.90/217,672.65 = 56,346.30/x
  3. Step 3: Cross multiply
    145,143.90x = 217,672.65 × 56,346.30
  4. Step 4: Simplify right side
    145,143.90x = 12,265,048,438.70
  5. Step 5: Solve for x
    x = 12,265,048,438.70/145,143.90
  6. Step 6: Final answer
    x = 84,502.68

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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.