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Finding the Fourth Proportional to 145,719.48, 218,537.16 and 61,498.51

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Solution

The fourth proportional to 145,719.48, 218,537.16 and 61,498.51 is: 92,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,719.48 : 218,537.16 = 61,498.51 : x
  2. Step 2: Convert to fraction form
    145,719.48/218,537.16 = 61,498.51/x
  3. Step 3: Cross multiply
    145,719.48x = 218,537.16 × 61,498.51
  4. Step 4: Simplify right side
    145,719.48x = 13,439,709,719.63
  5. Step 5: Solve for x
    x = 13,439,709,719.63/145,719.48
  6. Step 6: Final answer
    x = 92,230.01

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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.