Home / 145,248.85-200,443.52-81,586.69

Finding the Fourth Proportional to 145,248.85, 200,443.52 and 81,586.69

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Solution

The fourth proportional to 145,248.85, 200,443.52 and 81,586.69 is: 112,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,248.85 : 200,443.52 = 81,586.69 : x
  2. Step 2: Convert to fraction form
    145,248.85/200,443.52 = 81,586.69/x
  3. Step 3: Cross multiply
    145,248.85x = 200,443.52 × 81,586.69
  4. Step 4: Simplify right side
    145,248.85x = 16,353,523,328.75
  5. Step 5: Solve for x
    x = 16,353,523,328.75/145,248.85
  6. Step 6: Final answer
    x = 112,589.69

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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.