Home / 145,837.13-218,748.38-57,106.89

Finding the Fourth Proportional to 145,837.13, 218,748.38 and 57,106.89

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Solution

The fourth proportional to 145,837.13, 218,748.38 and 57,106.89 is: 85,657.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837.13 : 218,748.38 = 57,106.89 : x
  2. Step 2: Convert to fraction form
    145,837.13/218,748.38 = 57,106.89/x
  3. Step 3: Cross multiply
    145,837.13x = 218,748.38 × 57,106.89
  4. Step 4: Simplify right side
    145,837.13x = 12,492,039,388.80
  5. Step 5: Solve for x
    x = 12,492,039,388.80/145,837.13
  6. Step 6: Final answer
    x = 85,657.47

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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.