Home / 134,660.98-185,823.79-74,228.50

Finding the Fourth Proportional to 134,660.98, 185,823.79 and 74,228.50

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Solution

The fourth proportional to 134,660.98, 185,823.79 and 74,228.50 is: 102,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,660.98 : 185,823.79 = 74,228.50 : x
  2. Step 2: Convert to fraction form
    134,660.98/185,823.79 = 74,228.50/x
  3. Step 3: Cross multiply
    134,660.98x = 185,823.79 × 74,228.50
  4. Step 4: Simplify right side
    134,660.98x = 13,793,421,196.02
  5. Step 5: Solve for x
    x = 13,793,421,196.02/134,660.98
  6. Step 6: Final answer
    x = 102,430.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.