Home / 103,613.10-155,419.65-28,733.10

Finding the Fourth Proportional to 103,613.10, 155,419.65 and 28,733.10

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Solution

The fourth proportional to 103,613.10, 155,419.65 and 28,733.10 is: 43,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613.10 : 155,419.65 = 28,733.10 : x
  2. Step 2: Convert to fraction form
    103,613.10/155,419.65 = 28,733.10/x
  3. Step 3: Cross multiply
    103,613.10x = 155,419.65 × 28,733.10
  4. Step 4: Simplify right side
    103,613.10x = 4,465,688,345.42
  5. Step 5: Solve for x
    x = 4,465,688,345.42/103,613.10
  6. Step 6: Final answer
    x = 43,099.65

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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.