Home / 147,613.59-203,637.65-87,143.04

Finding the Fourth Proportional to 147,613.59, 203,637.65 and 87,143.04

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Solution

The fourth proportional to 147,613.59, 203,637.65 and 87,143.04 is: 120,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,613.59 : 203,637.65 = 87,143.04 : x
  2. Step 2: Convert to fraction form
    147,613.59/203,637.65 = 87,143.04/x
  3. Step 3: Cross multiply
    147,613.59x = 203,637.65 × 87,143.04
  4. Step 4: Simplify right side
    147,613.59x = 17,745,603,443.74
  5. Step 5: Solve for x
    x = 17,745,603,443.74/147,613.59
  6. Step 6: Final answer
    x = 120,216.60

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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.