Home / 145,627.40-218,466.00-66,748.38

Finding the Fourth Proportional to 145,627.40, 218,466.00 and 66,748.38

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Solution

The fourth proportional to 145,627.40, 218,466.00 and 66,748.38 is: 100,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,627.40 : 218,466.00 = 66,748.38 : x
  2. Step 2: Convert to fraction form
    145,627.40/218,466.00 = 66,748.38/x
  3. Step 3: Cross multiply
    145,627.40x = 218,466.00 × 66,748.38
  4. Step 4: Simplify right side
    145,627.40x = 14,582,251,334.77
  5. Step 5: Solve for x
    x = 14,582,251,334.77/145,627.40
  6. Step 6: Final answer
    x = 100,133.98

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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.