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Finding the Fourth Proportional to 98,499.77, 147,762.42 and 45,178.88

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Solution

The fourth proportional to 98,499.77, 147,762.42 and 45,178.88 is: 67,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,499.77 : 147,762.42 = 45,178.88 : x
  2. Step 2: Convert to fraction form
    98,499.77/147,762.42 = 45,178.88/x
  3. Step 3: Cross multiply
    98,499.77x = 147,762.42 × 45,178.88
  4. Step 4: Simplify right side
    98,499.77x = 6,675,740,415.80
  5. Step 5: Solve for x
    x = 6,675,740,415.80/98,499.77
  6. Step 6: Final answer
    x = 67,774.18

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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.