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Finding the Fourth Proportional to 145,636.07, 218,539.01 and 61,391.07

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Solution

The fourth proportional to 145,636.07, 218,539.01 and 61,391.07 is: 92,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,636.07 : 218,539.01 = 61,391.07 : x
  2. Step 2: Convert to fraction form
    145,636.07/218,539.01 = 61,391.07/x
  3. Step 3: Cross multiply
    145,636.07x = 218,539.01 × 61,391.07
  4. Step 4: Simplify right side
    145,636.07x = 13,416,343,814.12
  5. Step 5: Solve for x
    x = 13,416,343,814.12/145,636.07
  6. Step 6: Final answer
    x = 92,122.40

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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.