Home / 163,938.80-245,562.60-146,428.40

Finding the Fourth Proportional to 163,938.80, 245,562.60 and 146,428.40

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Solution

The fourth proportional to 163,938.80, 245,562.60 and 146,428.40 is: 219,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,938.80 : 245,562.60 = 146,428.40 : x
  2. Step 2: Convert to fraction form
    163,938.80/245,562.60 = 146,428.40/x
  3. Step 3: Cross multiply
    163,938.80x = 245,562.60 × 146,428.40
  4. Step 4: Simplify right side
    163,938.80x = 35,957,338,617.84
  5. Step 5: Solve for x
    x = 35,957,338,617.84/163,938.80
  6. Step 6: Final answer
    x = 219,333.91

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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.