Home / 145,421.18-218,042.46-56,571.14

Finding the Fourth Proportional to 145,421.18, 218,042.46 and 56,571.14

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Solution

The fourth proportional to 145,421.18, 218,042.46 and 56,571.14 is: 84,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,421.18 : 218,042.46 = 56,571.14 : x
  2. Step 2: Convert to fraction form
    145,421.18/218,042.46 = 56,571.14/x
  3. Step 3: Cross multiply
    145,421.18x = 218,042.46 × 56,571.14
  4. Step 4: Simplify right side
    145,421.18x = 12,334,909,440.39
  5. Step 5: Solve for x
    x = 12,334,909,440.39/145,421.18
  6. Step 6: Final answer
    x = 84,821.96

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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.