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Finding the Fourth Proportional to 103,602.16, 155,068.98 and 53,613.55

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Solution

The fourth proportional to 103,602.16, 155,068.98 and 53,613.55 is: 80,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,602.16 : 155,068.98 = 53,613.55 : x
  2. Step 2: Convert to fraction form
    103,602.16/155,068.98 = 53,613.55/x
  3. Step 3: Cross multiply
    103,602.16x = 155,068.98 × 53,613.55
  4. Step 4: Simplify right side
    103,602.16x = 8,313,798,512.68
  5. Step 5: Solve for x
    x = 8,313,798,512.68/103,602.16
  6. Step 6: Final answer
    x = 80,247.35

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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.