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Finding the Fourth Proportional to 145,762.61, 218,550.30 and 61,499.72

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Solution

The fourth proportional to 145,762.61, 218,550.30 and 61,499.72 is: 92,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,762.61 : 218,550.30 = 61,499.72 : x
  2. Step 2: Convert to fraction form
    145,762.61/218,550.30 = 61,499.72/x
  3. Step 3: Cross multiply
    145,762.61x = 218,550.30 × 61,499.72
  4. Step 4: Simplify right side
    145,762.61x = 13,440,781,163.16
  5. Step 5: Solve for x
    x = 13,440,781,163.16/145,762.61
  6. Step 6: Final answer
    x = 92,210.08

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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.