Home / 145,719.08-218,579.02-40,538.15

Finding the Fourth Proportional to 145,719.08, 218,579.02 and 40,538.15

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Solution

The fourth proportional to 145,719.08, 218,579.02 and 40,538.15 is: 60,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,719.08 : 218,579.02 = 40,538.15 : x
  2. Step 2: Convert to fraction form
    145,719.08/218,579.02 = 40,538.15/x
  3. Step 3: Cross multiply
    145,719.08x = 218,579.02 × 40,538.15
  4. Step 4: Simplify right side
    145,719.08x = 8,860,788,654.51
  5. Step 5: Solve for x
    x = 8,860,788,654.51/145,719.08
  6. Step 6: Final answer
    x = 60,807.33

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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.