Home / 187,430.19-281,137.08-54,307.50

Finding the Fourth Proportional to 187,430.19, 281,137.08 and 54,307.50

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Solution

The fourth proportional to 187,430.19, 281,137.08 and 54,307.50 is: 81,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,430.19 : 281,137.08 = 54,307.50 : x
  2. Step 2: Convert to fraction form
    187,430.19/281,137.08 = 54,307.50/x
  3. Step 3: Cross multiply
    187,430.19x = 281,137.08 × 54,307.50
  4. Step 4: Simplify right side
    187,430.19x = 15,267,851,972.10
  5. Step 5: Solve for x
    x = 15,267,851,972.10/187,430.19
  6. Step 6: Final answer
    x = 81,458.87

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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.