Home / 187,985.84-282,041.92-69,666.72

Finding the Fourth Proportional to 187,985.84, 282,041.92 and 69,666.72

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Solution

The fourth proportional to 187,985.84, 282,041.92 and 69,666.72 is: 104,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,985.84 : 282,041.92 = 69,666.72 : x
  2. Step 2: Convert to fraction form
    187,985.84/282,041.92 = 69,666.72/x
  3. Step 3: Cross multiply
    187,985.84x = 282,041.92 × 69,666.72
  4. Step 4: Simplify right side
    187,985.84x = 19,648,935,468.90
  5. Step 5: Solve for x
    x = 19,648,935,468.90/187,985.84
  6. Step 6: Final answer
    x = 104,523.49

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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.