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Finding the Fourth Proportional to 145,697.39, 218,447.66 and 74,444.93

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Solution

The fourth proportional to 145,697.39, 218,447.66 and 74,444.93 is: 111,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,697.39 : 218,447.66 = 74,444.93 : x
  2. Step 2: Convert to fraction form
    145,697.39/218,447.66 = 74,444.93/x
  3. Step 3: Cross multiply
    145,697.39x = 218,447.66 × 74,444.93
  4. Step 4: Simplify right side
    145,697.39x = 16,262,319,851.24
  5. Step 5: Solve for x
    x = 16,262,319,851.24/145,697.39
  6. Step 6: Final answer
    x = 111,617.10

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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.